请问一下这个模拟登陆帐号密码的脚本为什么出错 - Python论坛

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请问一下这个模拟登陆帐号密码的脚本为什么出错

db={}

def newuser():
     prompt='login desired:'
     while True:
         name=raw_input(prompt)
         if db.has_key(name):
              prompt='name taken,try another:'
              continue
         else:
              break

pwd=raw_input('password:')
db[name]=pwd

def olduser():
    name=raw_input('login:')
    pwd=raw_input('passwd:')
    password=db.get(name)
    if passwo==pwd:
        print 'welcome back',name
    else:
        print 'login incorrect'

def showmenu():
    prompt="""
(N)ew User Login
(E)xisting User login
(Q)uit

qinaideyonghu"""

done=False
while not chosen:
     try:
          choice=raw_input(prompt).strip()[0].lower()
     except (EOFError,KeyboardInterrupt):
          choice='q'
     print '\nbaoqian:[%s]'%choice
     if   choice not in 'neq':
          print 'invalid option,try again'
     else:
          chosen=True

if choice == 'q':done=True
if choice == 'n':newuser()
if choice == 'e':olduser()

if __name__=="__main__":
    showmenu()

打开时可以。username:    然后输出任何数值后显示db[name]=pwd     name没有被定义  我看不出来

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第 2 楼

得分:10

程序代码：

db={}
name = ""
chosen = False
prompt = "a"
passwo = ""
def newuser():
     prompt='login desired:'
     while True:
         name=raw_input(prompt)
         if db.has_key(name):
              prompt='name taken,try another:'
              continue
         else:
              break
         pwd=raw_input('password:')
         db[name]=pwd
         
def olduser():
    name=raw_input('login:')
    pwd=raw_input('passwd:')
    password=db.get(name)
    if passwo==pwd:
        print 'welcome back',name
    else:
        print 'login incorrect'

def showmenu():
    global prompt
    prompt="""
(N)ew User Login
(E)xisting User login
(Q)uit
"""




showmenu()
done=False
while not chosen:
     try:
          choice=raw_input(prompt).strip()[0].lower()
     except (EOFError,KeyboardInterrupt):
          choice='q'
     print '\nbaoqian:[%s]'%choice
     if   choice not in 'neq':
          print 'invalid option,try again'
     else:
          chosen=True
if choice == 'q':done=True
if choice == 'n':newuser()
if choice == 'e':olduser()
if __name__=="__main__":
    showmenu()

定义函数不是调用函数,所以name没有被定义
同样还有很多变量没有定义,在最顶端给你加上了

一边定义函数,一边写代码,看起来很别扭

只是给你把语法问题改了,具体实现什么功能说清楚
pwd=raw_input('password:')
db[name]=pwd
应该是放在newuser()里面,但是你的缩进用的tab,我编辑器里不兼容

第 3 楼

得分:10

好多处错误，具体错误在哪里我就不指出了，我这里只给出正确的，楼主对比一下自己的程序

程序代码：

db={}

def newuser():
     prompt='login desired:'
     while True:
         name=raw_input(prompt)
         if db.has_key(name):
              prompt='name taken,try another:'
              continue
         else:
              break

pwd=raw_input('password:')
db['name']=pwd
          
def olduser():
    name=raw_input('login:')
    pwd=raw_input('passwd:')
    password=db.get(name)
    if passwo==pwd:
        print 'welcome back',name
    else:
        print 'login incorrect'

def showmenu():
    prompt="""
(N)ew User Login
(E)xisting User login
(Q)uit

qinaideyonghu"""

done=False
chosen = False
while not chosen:
     try:
          choice=raw_input('prompt:').strip()[0].lower()
     except (EOFError,KeyboardInterrupt):
          choice='q'
     print '\nbaoqian:[%s]'%choice
     if   choice not in 'neq':
          print 'invalid option,try again'
     else:
          chosen=True

if choice == 'q':done=True
if choice == 'n':newuser()
if choice == 'e':olduser()

if __name__=="__main__":
    showmenu()

那一年，苍井空还是处女