save project

diy1.py

-username = "python"   
-userpassword = "123456"    
+i=5
+username = "qazxcv"   
+userpassword = "102938"    
 while True:
 while True:
+    if i>0:
         zh=input("请输入您的账号:")
         zh=input("请输入您的账号:")
         mm=input("请输入您的密码:")
         mm=input("请输入您的密码:")
+        i-=1
         if zh==username and mm==userpassword:
         if zh==username and mm==userpassword:
             print("登陆成功!")
             print("登陆成功!")
             break
             break
-    elif zh!=username:
+        if zh!=username:
             print("账号不存在!请重新输入!")
             print("账号不存在!请重新输入!")
-    else :
+            continue
+        if mm!=userpassword:
             print("密码输入有误!请重新输入!")
             print("密码输入有误!请重新输入!")
+    else:
+        print("您的账号已被锁定,好自为之!!!")
+        exit()
 print("欢迎来到贝尔编程!!!")
 print("欢迎来到贝尔编程!!!")
\ No newline at end of file