save project

diy2.py

+i = 3
 username = "python"
 userpassword = "123456"
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username:
-        if password == userpassword:
-            print("登录成功!")
-        elif password != userpassword:
-            print("密码输入错误，请重新输入！")
-    elif name != username:
-        print("用户名输入错误，请重新输入！")
+    if i > 0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i -= 1
+        if name == username:
+            if password == userpassword:
+                print("登录成功!")
+                break
+            elif password != userpassword:
+                print(f"密码输入错误，请重新输入！\n您还有{i}次输入机会")
+        elif name != username:
+            print(f"用户名输入错误，请重新输入！\n您还有{i}次输入机会")
+    else :
+        print("您的账号已被锁定，请带身份证来我司解锁")
+        exit()
 print("欢迎来到贝尔编程!")
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