save project

diy2.py

+i=3
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
         password = input("请输入密码:")
         password = input("请输入密码:")
+        i-=1
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
         if name != username:
         if name != username:
             print("用户名错误")
             print("用户名错误")
+            print("你还有"+str(i)+"机会")
             continue
             continue
         if password != userpassword:
         if password != userpassword:
             print("密码错误")
             print("密码错误")
+            print("你还有"+str(i)+"机会")
+    else:
+        print("账号锁定") 
+        exit()     
         
         
-    print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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