save project

diy2.py

 username = "sb"
 userpassword = "668895"
+i=3
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name != username:
-        print("用户名错误！")        
-        continue    
-    if password != userpassword:
-        print("密码错误")
-        continue                   
-    print("登录成功!")
-    break    
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i = i-1
+        if name != username:
+            print("用户名错误！")        
+              
+        if password != userpassword:
+            print("密码错误")
+            continue                   
+        print("登录成功!")
+        break 
+    else:
+        print("你的账号已被锁定，请去世")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file