save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
+i=3#设置登录次数
 while True:
 while True:
-    name = input("请输入用户名:")#将输入的账号赋值给user变量
-    password = input("请输入密码:")#将输入的密码赋值给user变量
-    if name == username and password == userpassword:#对比账号密码
-        print("登录成功!")
-        print("欢迎来到编程世界")
-        break#跳出循环
-    if name!=username:
-        print("用户名错误")
-    elif password!=userpassword:
-        print("密码输入错误")
+    if i>0:
+        name = input("请输入用户名:")#将输入的账号赋值给user变量
+        password = input("请输入密码:")#将输入的密码赋值给user变量
+        i=i-1#登录次数减1
+        if name == username and password == userpassword:#对比账号密码
+            print("登录成功!")
+            print("欢迎来到编程世界")
+            break#跳出循环
+        if name!=username:
+            print("用户名错误")
+        if password!=userpassword:
+            print("密码输入错误")
+        
+    else:
+        print("用户已被锁定，请来我司解锁")
+        exit()
     
     
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