Python easyGUI 登录框 非空验证

 import easygui as g

 msg='欢迎注册'
 title='注册'
 fieldNames=['*用户名','*密码','*重复密码','真实姓名','手机号','QQ','e-mail']
 fieldValues=[]
 fieldValues=g.multenterbox(msg,title,fieldNames)

 while 1:
     if fieldValues==None:
         break
     errormsg=''
     for i in range(len(fieldNames)):
         if '*' in fieldNames[i]:
             if fieldValues[i]=='':
                 errormsg+='【%s】不能为空'%fieldNames[i]
                 #g.msgbox(errormsg)
                 #break
     if errormsg=='':
         break

     fieldValues=g.multenterbox(errormsg,title,fieldNames,fieldValues)

 print(str(fieldValues))