2015/9/3Python密码输入屏蔽字符

import  msvcrt, sysdef pwd_input(a):    PRint str(a),    chars = []    while True:        newChar = msvcrt.getch()        if newChar in '/r/n':            print ''            break        elif newChar in '/b':            if chars:                del chars[-1]                sys.stdout.write('/b/b')        else:            chars.append(newChar)            sys.stdout.write('*')    return str(chars)pwd = pwd_input('passWord:')