save project

diy2.py

@@ -2,12 +2,16 @@ username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
+    if name != username:
+        print("该用户不存在！")
+        continue
     password = input("请输入密码:")
     password = input("请输入密码:")
     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("该用户不存在！")
         print("该用户不存在！")
+        continue
     if password != userpassword:
     if password != userpassword:
         print("该密码不存在！")
         print("该密码不存在！")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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