c++打印环境变量

 1 #include <stdio.h>
 2 #include <stdlib.h>
 3 #include <string.h>
 4 
 5 extern char** environ;
 6 int main(int argc, char* argv[])
 7 {
 8     printf("Content type:text/plain\n\n");
 9 
10     char** env = environ;
11     while(*env){
12         printf("===%s====\n", *env);
13         env++;
14     }   
15     printf("===end=====");
16     fflush(stdout);
17 
18     return 0;
19 }

1 #!/usr/bin/python 
2 #encoding=utf-8
3 
4 import os
5 
6 print "Content-type:text/html\r\n\r\n"
7 print "<font size=+1>Environment</font>"
8 for param in os.environ.keys():
9     print "<b>%20s</b>: %s "  %(param, os.environ[param])