save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=3
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
+    if not i<==0:
+    name=input("请输入用户名")
+    password=input("请输入密码")
+    if name==username and password==userpassword:
+        print("输入正确")
         break
-    elif  name!=username:
-        continue
+    if name!=username
        print("用户名错误")
-    else password!=userpassword:
-        print("密码错误")
+       continue
+
+
+    
+     
 print("欢迎来到贝尔编程!")
\ No newline at end of file