save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name != username or password != userpassword:
-        print("登录失败!")
+for i in range(5):
+    a = input("请输入用户名:")
+    b = input("请输入密码:")
+    if a != username:
+        print("名字错误")
+        continue
+    if b != userpassword:
+        print("密码错误")
     else:
     else:
-        print("登录成功")
-        print("欢迎来到贝尔编程!")
-        break
+        print("登陆成功")
+        break
+print("你别用了")
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