save project

diy2.py

 username = "python"
 userpassword = "123456"
+number=3
 name = input("请输入用户名:")
 while name!=username:
     print("用户名错误")
-    name= input("请输入用户名:")
+    number -=1
+    print("你还有:"+str(number)+"次")
+    if number==0:
+        print("登录次数已上限")
+        exit()
+    name = input("请输入用户名:")
 password = input("请输入密码:")
-while password !=userpassword:
-    print("密码错误")
-    password= input("密码错误请重新输入")
 if name == username and password == userpassword:
-    print("登录成功!")    
-    print("欢迎来到贝尔编程!")
\ No newline at end of file
+    print("登录成功!") 
+else:
+    print("密码错误")
+    number -=1
+    print("你还有:"+str(number)+"次")
+    if number==0:
+        print("登录次数已上限")
+        exit()  
+    password = input("请输入密码:")  
+print("欢迎来到贝尔编程!")
\ No newline at end of file