save project

diy.py

+i = 3
 username = "pythen"
 userpassward = "123456"
 while True:
-    name = input("请输入你的用户名")
-    passward = input("请输入你的密码")
-    if name == username and userpassward == passward:
-        print("登陆成功")
-        break
-    if name != username:
-        print("用户名不存在，请重新输入！")
-    if passward != userpassward:
-        print("密码输入有误，请重新输入！")
+    if i > 0:
+        name = input("请输入用户名")
+        passward = input("请输入密码")
+        i-=1
+        if name == username and passward == userpassward:
+            print("登陆成功！")
+            break
+        if name != username:
+            print("用户名输入错误！")
+            continue
+        if passward != userpassward:
+            print("密码输入错误！")
+
+    else:
+        print("你的账号已锁定！")
+        exit() 
 print("欢迎来到贝尔编程！")
\ No newline at end of file