在之前的文章中，我在之前的文章中提到过，这里呢，考虑后，感觉之前的写法不够优雅，于是乎呢，我自己抽空去研究了下，主要是新写方法，这样呢，以后的要使用的时候，可以直接去使用，而不是每次换个环境就要修改环境中的unittest的类库。
首先呢，我们对main方法进行修改
# -*- coding: utf-8 -*- import sys import argparse import os from load import defaultTestLoader from unittest import runner from unittest.signals import installHandler __unittest = True MAIN_EXAMPLES = """\ Examples: %(prog)s test_module - run tests from test_module %(prog)s module.TestClass - run tests from module.TestClass %(prog)s module.Class.test_method - run specified test method %(prog)s path/to/test_file.py - run tests from test_file.py """ MODULE_EXAMPLES = """\ Examples: %(prog)s - run default set of tests %(prog)s MyTestSuite - run suite 'MyTestSuite' %(prog)s MyTestCase.testSomething - run MyTestCase.testSomething %(prog)s MyTestCase - run all 'test*' test methods in MyTestCase """ def _convert_name(name): # on Linux / Mac OS X 'foo.PY' is not importable, but on # Windows it is. Simpler to do a case insensitive match # a better check would be to check that the name is a # valid Python module name. if os.path.isfile(name) and name.lower().endswith('.py'): if os.path.isabs(name): rel_path = os.path.relpath(name, os.getcwd()) if os.path.isabs(rel_path) or rel_path.startswith(os.pardir): return name name = rel_path # on Windows both '\' and '/' are used as path # separators. Better to replace both than rely on os.path.sep return name[:-3].replace('\\', '.').replace('/', '.') return name def _convert_names(names): return [_convert_name(name) for name in names] def _convert_select_pattern(pattern): if not '*' in pattern: pattern = '*%s*' % pattern return pattern class TestProgram(object): """A command-line program that runs a set of tests; this is primarily for making test modules conveniently executable. """ # defaults for testing module=None verbosity = 1 failfast = catchbreak = buffer = progName = warnings = testNamePatterns = None _discovery_parser = None def __init__(self, module='__main__', defaultTest=None, argv=None, testRunner=None, testLoader=defaultTestLoader, exit=True, verbosity=1, failfast=None, catchbreak=None, buffer=None, warnings=None, *, tb_locals=False): if isinstance(module, str): self.module = __import__(module) for part in module.split('.')[1:]: self.module = getattr(self.module, part) else: self.module = module if argv is None: argv = sys.argv self.exit = exit self.failfast = failfast self.catchbreak = catchbreak self.verbosity = verbosity self.buffer = buffer self.tb_locals = tb_locals if warnings is None and not sys.warnoptions: # even if DeprecationWarnings are ignored by default # print them anyway unless other warnings settings are # specified by the warnings arg or the -W python flag self.warnings = 'default' else: # here self.warnings is set either to the value passed # to the warnings args or to None. # If the user didn't pass a value self.warnings will # be None. This means that the behavior is unchanged # and depends on the values passed to -W. self.warnings = warnings self.defaultTest = defaultTest self.testRunner = testRunner self.testLoader = testLoader self.progName = os.path.basename(argv[0]) self.parseArgs(argv) self.runTests() def usageExit(self, msg=None): if msg: print(msg) if self._discovery_parser is None: self._initArgParsers() self._print_help() sys.exit(2) def _print_help(self, *args, **kwargs): if self.module is None: print(self._main_parser.format_help()) print(MAIN_EXAMPLES % {'prog': self.progName}) self._discovery_parser.print_help() else: print(self._main_parser.format_help()) print(MODULE_EXAMPLES % {'prog': self.progName}) def parseArgs(self, argv): self._initArgParsers() if self.module is None: if len(argv) > 1 and argv[1].lower() == 'discover': self._do_discovery(argv[2:]) return self._main_parser.parse_args(argv[1:], self) if not self.tests: # this allows "python -m unittest -v" to still work for # test discovery. self._do_discovery([]) return else: self._main_parser.parse_args(argv[1:], self) if self.tests: self.testNames = _convert_names(self.tests) if __name__ == '__main__': # to support python -m unittest ... self.module = None elif self.defaultTest is None: # createTests will load tests from self.module self.testNames = None elif isinstance(self.defaultTest, str): self.testNames = (self.defaultTest,) else: self.testNames = list(self.defaultTest) self.createTests() def createTests(self, from_discovery=False, Loader=None): if self.testNamePatterns: self.testLoader.testNamePatterns = self.testNamePatterns if from_discovery: loader = self.testLoader if Loader is None else Loader() self.test = loader.discover(self.start, self.pattern, self.top) elif self.testNames is None: self.test = self.testLoader.loadTestsFromModule(self.module) else: self.test = self.testLoader.loadTestsFromNames(self.testNames, self.module) def _initArgParsers(self): parent_parser = self._getParentArgParser() self._main_parser = self._getMainArgParser(parent_parser) self._discovery_parser = self._getDiscoveryArgParser(parent_parser) def _getParentArgParser(self): parser = argparse.ArgumentParser(add_help=False) parser.add_argument('-v', '--verbose', dest='verbosity', action='store_const', const=2, help='Verbose output') parser.add_argument('-q', '--quiet', dest='verbosity', action='store_const', const=0, help='Quiet output') parser.add_argument('--locals', dest='tb_locals', action='store_true', help='Show local variables in tracebacks') if self.failfast is None: parser.add_argument('-f', '--failfast', dest='failfast', action='store_true', help='Stop on first fail or error') self.failfast = False if self.catchbreak is None: parser.add_argument('-c', '--catch', dest='catchbreak', action='store_true', help='Catch Ctrl-C and display results so far') self.catchbreak = False if self.buffer is None: parser.add_argument('-b', '--buffer', dest='buffer', action='store_true', help='Buffer stdout and stderr during tests') self.buffer = False if self.testNamePatterns is None: parser.add_argument('-k', dest='testNamePatterns', action='append', type=_convert_select_pattern, help='Only run tests which match the given substring') self.testNamePatterns = [] return parser def _getMainArgParser(self, parent): parser = argparse.ArgumentParser(parents=[parent]) parser.prog = self.progName parser.print_help = self._print_help parser.add_argument('tests', nargs='*', help='a list of any number of test modules, ' 'classes and test methods.') return parser def _getDiscoveryArgParser(self, parent): parser = argparse.ArgumentParser(parents=[parent]) parser.prog = '%s discover' % self.progName parser.epilog = ('For test discovery all test modules must be ' 'importable from the top level directory of the ' 'project.') parser.add_argument('-s', '--start-directory', dest='start', help="Directory to start discovery ('.' default)") parser.add_argument('-p', '--pattern', dest='pattern', help="Pattern to match tests ('test*.py' default)") parser.add_argument('-t', '--top-level-directory', dest='top', help='Top level directory of project (defaults to ' 'start directory)') for arg in ('start', 'pattern', 'top'): parser.add_argument(arg, nargs='?', default=argparse.SUPPRESS, help=argparse.SUPPRESS) return parser def _do_discovery(self, argv, Loader=None): self.start = '.' self.pattern = 'test*.py' self.top = None if argv is not None: # handle command line args for test discovery if self._discovery_parser is None: # for testing self._initArgParsers() self._discovery_parser.parse_args(argv, self) self.createTests(from_discovery=True, Loader=Loader) def runTests(self): if self.catchbreak: installHandler() if self.testRunner is None: self.testRunner = runner.TextTestRunner if isinstance(self.testRunner, type): try: try: testRunner = self.testRunner(verbosity=self.verbosity, failfast=self.failfast, buffer=self.buffer, warnings=self.warnings, tb_locals=self.tb_locals) except TypeError: # didn't accept the tb_locals argument testRunner = self.testRunner(verbosity=self.verbosity, failfast=self.failfast, buffer=self.buffer, warnings=self.warnings) except TypeError: # didn't accept the verbosity, buffer or failfast arguments testRunner = self.testRunner() else: # it is assumed to be a TestRunner instance testRunner = self.testRunner self.result = testRunner.run(self.test) if self.exit: sys.exit(not self.result.wasSuccessful()) main = TestProgram
手写这里的 只需要改动下TestProgram的里面的
即可，我们需要的config的代码其实很简单，如下
testname="leizi"
就是我们改下测试用例的名称。那么我们接下来看下我们怎么去改造defaultTestLoader。修改后的代码如下。
"""Loading unittests.""" import os import re import sys import traceback import types import functools import warnings from config import testname from fnmatch import fnmatch, fnmatchcase from unittest import case, suite, util __unittest = True # what about .pyc (etc) # we would need to avoid loading the same tests multiple times # from '.py', *and* '.pyc' VALID_MODULE_NAME = re.compile(r'[_a-z]\w*\.py$', re.IGNORECASE) class _FailedTest(case.TestCase): _testMethodName = None def __init__(self, method_name, exception): self._exception = exception super(_FailedTest, self).__init__(method_name) def __getattr__(self, name): if name != self._testMethodName: return super(_FailedTest, self).__getattr__(name) def testFailure(): raise self._exception return testFailure def _make_failed_import_test(name, suiteClass): message = 'Failed to import test module: %s\n%s' % ( name, traceback.format_exc()) return _make_failed_test(name, ImportError(message), suiteClass, message) def _make_failed_load_tests(name, exception, suiteClass): message = 'Failed to call load_tests:\n%s' % (traceback.format_exc(),) return _make_failed_test( name, exception, suiteClass, message) def _make_failed_test(methodname, exception, suiteClass, message): test = _FailedTest(methodname, exception) return suiteClass((test,)), message def _make_skipped_test(methodname, exception, suiteClass): @case.skip(str(exception)) def testSkipped(self): pass attrs = {methodname: testSkipped} TestClass = type("ModuleSkipped", (case.TestCase,), attrs) return suiteClass((TestClass(methodname),)) def _jython_aware_splitext(path): if path.lower().endswith('$py.class'): return path[:-9] return os.path.splitext(path)[0] class TestLoader(object): """ This class is responsible for loading tests according to various criteria and returning them wrapped in a TestSuite """ testMethodPrefix = testname sortTestMethodsUsing = staticmethod(util.three_way_cmp) testNamePatterns = None suiteClass = suite.TestSuite _top_level_dir = None def __init__(self): super(TestLoader, self).__init__() self.errors = [] # Tracks packages which we have called into via load_tests, to # avoid infinite re-entrancy. self._loading_packages = set() def loadTestsFromTestCase(self, testCaseClass): """Return a suite of all test cases contained in testCaseClass""" if issubclass(testCaseClass, suite.TestSuite): raise TypeError("Test cases should not be derived from " "TestSuite. Maybe you meant to derive from " "TestCase?") testCaseNames = self.getTestCaseNames(testCaseClass) if not testCaseNames and hasattr(testCaseClass, 'runTest'): testCaseNames = ['runTest'] loaded_suite = self.suiteClass(map(testCaseClass, testCaseNames)) return loaded_suite # XXX After Python 3.5, remove backward compatibility hacks for # use_load_tests deprecation via *args and **kws. See issue 16662. def loadTestsFromModule(self, module, *args, pattern=None, **kws): """Return a suite of all test cases contained in the given module""" # This method used to take an undocumented and unofficial # use_load_tests argument. For backward compatibility, we still # accept the argument (which can also be the first position) but we # ignore it and issue a deprecation warning if it's present. if len(args) > 0 or 'use_load_tests' in kws: warnings.warn('use_load_tests is deprecated and ignored', DeprecationWarning) kws.pop('use_load_tests', None) if len(args) > 1: # Complain about the number of arguments, but don't forget the # required `module` argument. complaint = len(args) + 1 raise TypeError('loadTestsFromModule() takes 1 positional argument but {} were given'.format(complaint)) if len(kws) != 0: # Since the keyword arguments are unsorted (see PEP 468), just # pick the alphabetically sorted first argument to complain about, # if multiple were given. At least the error message will be # predictable. complaint = sorted(kws)[0] raise TypeError("loadTestsFromModule() got an unexpected keyword argument '{}'".format(complaint)) tests = [] for name in dir(module): obj = getattr(module, name) if isinstance(obj, type) and issubclass(obj, case.TestCase): tests.append(self.loadTestsFromTestCase(obj)) load_tests = getattr(module, 'load_tests', None) tests = self.suiteClass(tests) if load_tests is not None: try: return load_tests(self, tests, pattern) except Exception as e: error_case, error_message = _make_failed_load_tests( module.__name__, e, self.suiteClass) self.errors.append(error_message) return error_case return tests def loadTestsFromName(self, name, module=None): """Return a suite of all test cases given a string specifier. The name may resolve either to a module, a test case class, a test method within a test case class, or a callable object which returns a TestCase or TestSuite instance. The method optionally resolves the names relative to a given module. """ parts = name.split('.') error_case, error_message = None, None if module is None: parts_copy = parts[:] while parts_copy: try: module_name = '.'.join(parts_copy) module = __import__(module_name) break except ImportError: next_attribute = parts_copy.pop() # Last error so we can give it to the user if needed. error_case, error_message = _make_failed_import_test( next_attribute, self.suiteClass) if not parts_copy: # Even the top level import failed: report that error. self.errors.append(error_message) return error_case parts = parts[1:] obj = module for part in parts: try: parent, obj = obj, getattr(obj, part) except AttributeError as e: # We can't traverse some part of the name. if (getattr(obj, '__path__', None) is not None and error_case is not None): # This is a package (no __path__ per importlib docs), and we # encountered an error importing something. We cannot tell # the difference between package.WrongNameTestClass and # package.wrong_module_name so we just report the # ImportError - it is more informative. self.errors.append(error_message) return error_case else: # Otherwise, we signal that an AttributeError has occurred. error_case, error_message = _make_failed_test( part, e, self.suiteClass, 'Failed to access attribute:\n%s' % ( traceback.format_exc(),)) self.errors.append(error_message) return error_case if isinstance(obj, types.ModuleType): return self.loadTestsFromModule(obj) elif isinstance(obj, type) and issubclass(obj, case.TestCase): return self.loadTestsFromTestCase(obj) elif (isinstance(obj, types.FunctionType) and isinstance(parent, type) and issubclass(parent, case.TestCase)): name = parts[-1] inst = parent(name) # static methods follow a different path if not isinstance(getattr(inst, name), types.FunctionType): return self.suiteClass([inst]) elif isinstance(obj, suite.TestSuite): return obj if callable(obj): test = obj() if isinstance(test, suite.TestSuite): return test elif isinstance(test, case.TestCase): return self.suiteClass([test]) else: raise TypeError("calling %s returned %s, not a test" % (obj, test)) else: raise TypeError("don't know how to make test from: %s" % obj) def loadTestsFromNames(self, names, module=None): """Return a suite of all test cases found using the given sequence of string specifiers. See 'loadTestsFromName()'. """ suites = [self.loadTestsFromName(name, module) for name in names] return self.suiteClass(suites) def getTestCaseNames(self, testCaseClass): """Return a sorted sequence of method names found within testCaseClass """ def shouldIncludeMethod(attrname): if not attrname.startswith(self.testMethodPrefix): return False testFunc = getattr(testCaseClass, attrname) if not callable(testFunc): return False fullName = f'%s.%s.%s' % ( testCaseClass.__module__, testCaseClass.__qualname__, attrname ) return self.testNamePatterns is None or \ any(fnmatchcase(fullName, pattern) for pattern in self.testNamePatterns) testFnNames = list(filter(shouldIncludeMethod, dir(testCaseClass))) if self.sortTestMethodsUsing: testFnNames.sort(key=functools.cmp_to_key(self.sortTestMethodsUsing)) return testFnNames def discover(self, start_dir, pattern='test*.py', top_level_dir=None): """Find and return all test modules from the specified start directory, recursing into subdirectories to find them and return all tests found within them. Only test files that match the pattern will be loaded. (Using shell style pattern matching.) All test modules must be importable from the top level of the project. If the start directory is not the top level directory then the top level directory must be specified separately. If a test package name (directory with '__init__.py') matches the pattern then the package will be checked for a 'load_tests' function. If this exists then it will be called with (loader, tests, pattern) unless the package has already had load_tests called from the same discovery invocation, in which case the package module object is not scanned for tests - this ensures that when a package uses discover to further discover child tests that infinite recursion does not happen. If load_tests exists then discovery does *not* recurse into the package, load_tests is responsible for loading all tests in the package. The pattern is deliberately not stored as a loader attribute so that packages can continue discovery themselves. top_level_dir is stored so load_tests does not need to pass this argument in to loader.discover(). Paths are sorted before being imported to ensure reproducible execution order even on filesystems with non-alphabetical ordering like ext3/4. """ set_implicit_top = False if top_level_dir is None and self._top_level_dir is not None: # make top_level_dir optional if called from load_tests in a package top_level_dir = self._top_level_dir elif top_level_dir is None: set_implicit_top = True top_level_dir = start_dir top_level_dir = os.path.abspath(top_level_dir) if not top_level_dir in sys.path: # all test modules must be importable from the top level directory # should we *unconditionally* put the start directory in first # in sys.path to minimise likelihood of conflicts between installed # modules and development versions? sys.path.insert(0, top_level_dir) self._top_level_dir = top_level_dir is_not_importable = False is_namespace = False tests = [] if os.path.isdir(os.path.abspath(start_dir)): start_dir = os.path.abspath(start_dir) if start_dir != top_level_dir: is_not_importable = not os.path.isfile(os.path.join(start_dir, '__init__.py')) else: # support for discovery from dotted module names try: __import__(start_dir) except ImportError: is_not_importable = True else: the_module = sys.modules[start_dir] top_part = start_dir.split('.')[0] try: start_dir = os.path.abspath( os.path.dirname((the_module.__file__))) except AttributeError: # look for namespace packages try: spec = the_module.__spec__ except AttributeError: spec = None if spec and spec.loader is None: if spec.submodule_search_locations is not None: is_namespace = True for path in the_module.__path__: if (not set_implicit_top and not path.startswith(top_level_dir)): continue self._top_level_dir = \ (path.split(the_module.__name__ .replace(".", os.path.sep))[0]) tests.extend(self._find_tests(path, pattern, namespace=True)) elif the_module.__name__ in sys.builtin_module_names: # builtin module raise TypeError('Can not use builtin modules ' 'as dotted module names') from None else: raise TypeError( 'don\'t know how to discover from {!r}' .format(the_module)) from None if set_implicit_top: if not is_namespace: self._top_level_dir = \ self._get_directory_containing_module(top_part) sys.path.remove(top_level_dir) else: sys.path.remove(top_level_dir) if is_not_importable: raise ImportError('Start directory is not importable: %r' % start_dir) if not is_namespace: tests = list(self._find_tests(start_dir, pattern)) return self.suiteClass(tests) def _get_directory_containing_module(self, module_name): module = sys.modules[module_name] full_path = os.path.abspath(module.__file__) if os.path.basename(full_path).lower().startswith('__init__.py'): return os.path.dirname(os.path.dirname(full_path)) else: # here we have been given a module rather than a package - so # all we can do is search the *same* directory the module is in # should an exception be raised instead return os.path.dirname(full_path) def _get_name_from_path(self, path): if path == self._top_level_dir: return '.' path = _jython_aware_splitext(os.path.normpath(path)) _relpath = os.path.relpath(path, self._top_level_dir) assert not os.path.isabs(_relpath), "Path must be within the project" assert not _relpath.startswith('..'), "Path must be within the project" name = _relpath.replace(os.path.sep, '.') return name def _get_module_from_name(self, name): __import__(name) return sys.modules[name] def _match_path(self, path, full_path, pattern): # override this method to use alternative matching strategy return fnmatch(path, pattern) def _find_tests(self, start_dir, pattern, namespace=False): """Used by discovery. Yields test suites it loads.""" # Handle the __init__ in this package name = self._get_name_from_path(start_dir) # name is '.' when start_dir == top_level_dir (and top_level_dir is by # definition not a package). if name != '.' and name not in self._loading_packages: # name is in self._loading_packages while we have called into # loadTestsFromModule with name. tests, should_recurse = self._find_test_path( start_dir, pattern, namespace) if tests is not None: yield tests if not should_recurse: # Either an error occurred, or load_tests was used by the # package. return # Handle the contents. paths = sorted(os.listdir(start_dir)) for path in paths: full_path = os.path.join(start_dir, path) tests, should_recurse = self._find_test_path( full_path, pattern, namespace) if tests is not None: yield tests if should_recurse: # we found a package that didn't use load_tests. name = self._get_name_from_path(full_path) self._loading_packages.add(name) try: yield from self._find_tests(full_path, pattern, namespace) finally: self._loading_packages.discard(name) def _find_test_path(self, full_path, pattern, namespace=False): """Used by discovery. Loads tests from a single file, or a directories' __init__.py when passed the directory. Returns a tuple (None_or_tests_from_file, should_recurse). """ basename = os.path.basename(full_path) if os.path.isfile(full_path): if not VALID_MODULE_NAME.match(basename): # valid Python identifiers only return None, False if not self._match_path(basename, full_path, pattern): return None, False # if the test file matches, load it name = self._get_name_from_path(full_path) try: module = self._get_module_from_name(name) except case.SkipTest as e: return _make_skipped_test(name, e, self.suiteClass), False except: error_case, error_message = \ _make_failed_import_test(name, self.suiteClass) self.errors.append(error_message) return error_case, False else: mod_file = os.path.abspath( getattr(module, '__file__', full_path)) realpath = _jython_aware_splitext( os.path.realpath(mod_file)) fullpath_noext = _jython_aware_splitext( os.path.realpath(full_path)) if realpath.lower() != fullpath_noext.lower(): module_dir = os.path.dirname(realpath) mod_name = _jython_aware_splitext( os.path.basename(full_path)) expected_dir = os.path.dirname(full_path) msg = ("%r module incorrectly imported from %r. Expected " "%r. Is this module globally installed?") raise ImportError( msg % (mod_name, module_dir, expected_dir)) return self.loadTestsFromModule(module, pattern=pattern), False elif os.path.isdir(full_path): if (not namespace and not os.path.isfile(os.path.join(full_path, '__init__.py'))): return None, False load_tests = None tests = None name = self._get_name_from_path(full_path) try: package = self._get_module_from_name(name) except case.SkipTest as e: return _make_skipped_test(name, e, self.suiteClass), False except: error_case, error_message = \ _make_failed_import_test(name, self.suiteClass) self.errors.append(error_message) return error_case, False else: load_tests = getattr(package, 'load_tests', None) # Mark this package as being in load_tests (possibly ;)) self._loading_packages.add(name) try: tests = self.loadTestsFromModule(package, pattern=pattern) if load_tests is not None: # loadTestsFromModule(package) has loaded tests for us. return tests, False return tests, True finally: self._loading_packages.discard(name) else: return None, False defaultTestLoader = TestLoader() def _makeLoader(prefix, sortUsing, suiteClass=None, testNamePatterns=None): loader = TestLoader() loader.sortTestMethodsUsing = sortUsing loader.testMethodPrefix = prefix loader.testNamePatterns = testNamePatterns if suiteClass: loader.suiteClass = suiteClass return loader def getTestCaseNames(testCaseClass, prefix, sortUsing=util.three_way_cmp, testNamePatterns=None): return _makeLoader(prefix, sortUsing, testNamePatterns=testNamePatterns).getTestCaseNames(testCaseClass) def makeSuite(testCaseClass, prefix=testname, sortUsing=util.three_way_cmp, suiteClass=suite.TestSuite): return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromTestCase( testCaseClass) def findTestCases(module, prefix=testname, sortUsing=util.three_way_cmp, suiteClass=suite.TestSuite): return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromModule(\ module)
主要修改如下：
1.首先修改testMethodPrefix，我们可以看到，接下来再去加载的时候，
会使用到这个地方，这是是获取测试用例名称的。这里我们修改完毕后，
去加载测试用例的时候，也需要修改，修改完毕后，我们可以去写以一个方式去测试下。
我们首先去写一个测试方法，如下：
# -*- coding: utf-8 -*- import unittest from newmain import main class testone(unittest.TestCase): def setUp(self) -> None: pass def leizi1(self): print("leizitest") self.assertTrue(True) def tearDown(self) -> None: pass def leizi2(self): print("leizitest") self.assertTrue(True) def testone(self): print("test test") self.assertFalse(False) if __name__=="__main__": main()
这里的我们的方法都是按照新定义后的方法去写的，那么我们看下执行情况。
一共执行了两个测试用例，其实我们写了三个，但是第三个由于不是leizi开通的，所以这里就没有适配，当然了，我们还可以增加一个方法，对这里的进行兼容，我们可以兼容不同命名的方法。
这篇文章其实是之前文章的升级，但是由于，之前考虑的不足，导致了代码有一定的局限性，在本次修改后，可能暂时是满足了，但是如果还需要定制的时候，我们尽量不要直接改写类库的代码，而是在代码在外面进程封装改动后使用。
