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