Python3命令行

tuntun · tuntun · commit ae18bec3a51a · 2015-11-25T10:29:52.000+08:00
diff --git a/sys_argv.py b/sys_argv.py
@@ -1,24 +1,42 @@
-import sys
+# encoding:utf-8
 
-# sys.argv&#25509;&#25910;&#21442;&#25968;&#65292;&#31532;&#19968;&#20010;&#21442;&#25968;&#26159;&#25991;&#20214;&#21517;&#65292;&#31532;&#20108;&#20010;&#21442;&#25968;&#24320;&#22987;&#26159;&#29992;&#25143;&#36755;&#20837;&#30340;&#21442;&#25968;&#65292;&#20197;&#31354;&#26684;&#38548;&#24320;
+# !/usr/bin/env python
 
-def run1():
-    print('I\'m action1')
+# -*- Python3&#21629;&#20196;&#34892; -*-
 
+import optparse
+import sys
 
-def run2():
-    print('I\'m action2')
 
+def process_command_line(argv):
+    """
+    Return a 2-tuple: (settings object, args list).
+    `argv` is a list of arguments, or `None` for ``sys.argv[1:]``.
+    """
+    if argv is None:
+        argv = sys.argv[1:]
+    # initialize the parser object:
+    parser = optparse.OptionParser(
+        formatter=optparse.TitledHelpFormatter(width=78),
+        add_help_option=None)
+    # define options here:
+    parser.add_option(      # customized description; put --help last
+        '-h', '--help', action='help',
+        help='Show this help message and exit.')
+    settings, args = parser.parse_args(argv)
+    # check number of arguments, verify values, etc.:
+    if args:
+        parser.error('program takes no command-line arguments; '
+                     '"%s" ignored.' % (args,))
+    # further process settings & args if necessary
+    return settings, args
 
-if 2 > len(sys.argv):
-    print('none')
-else:
-    action1 = sys.argv[1]
-    action2 = sys.argv[2]
+def main(argv=None):
+    settings, args = process_command_line(argv)
+    # application code here, like:
+    # run(settings, args)
+    return 0        # success
 
-    if 'run1' == action1:
-        run1()
-    if 'run2' == action2:
-        run2()
-        
-#&#29992;&#27861;&#65306;&#22312;&#21629;&#20196;&#34892;&#25191;&#34892;&#33050;&#26412;&#65292;python sys_argv.py run1 run2
+if __name__ == '__main__':
+    status = main()
+    sys.exit(status)
