CGI是运行在服务器上的程序，提供客户端HTML页面的接口，它的全称是Common Gateway Interface (通用网关接口)
缺点及改进：
每次的CGI请求都要生成程序的副本来运行
FastCGI-先编译
mod_perl-将解释器作为模块集成在web服务器中
使用C等编译语言
模板引擎jkxy.py
form_type="GET"和form_type="POST"对应于get和post请求
def start_response(resp="text/html"): return 'Content-type: '+resp+ '\n\n' def start_form(the_url="",form_type="GET"): return '<form action="'+the_url+'"method="'+form_type+'">' def end_form(submit_msg="Submit"): return '<p></p><input type="submit" value="' +submit_msg+'">' def input_label(name,placeholder="",value="",readonly=None): if readonly is None: return '<input type="text" value="'+value+'" name="'+name+'" placeholder="'+placeholder+'">' else: return '<input type="text" value="'+value+'" readonly="'+readonly+'" name="'+name+'" placeholder="'+placeholder+'">' def context(word): return word def start_div(align,style): return '<div align="'+align+'"style="'+style+'">' def end_div(): return "</div>" def img(src): return '<img src="'+src+'">'
main.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import cgi, cgitb
from jkxy import *
form1 = cgi.FieldStorage() #声明请求参数的一个容器
num1=form1.getvalue("Num1")
num2=form1.getvalue("Num2")
num3=None
if not num1 is None and not num2 is None:
num1=int(num1)
num2=int(num2)
num3=num1+num2
print start_response()
print start_div("center","margin-top:40px;")
print img("../views/add.png")
print end_div()
print start_div("center","margin-top:60px;")
print start_form()
print input_label("Num1","adder-1")
print "+"
print input_label("Num2","adder-2")
print "="
if num3 is None:
print input_label("Num3","result","","readonly")
else:
print input_label("Num3","result",str(num3),"readonly")
print end_form()
print end_div()
使用以下命令启动web服务
python -m CGIHTTPServer 8081
本文出自 “点滴积累” 博客，请务必保留此出处http://tianxingzhe.blog.51cto.com/3390077/1727166
