save project

diy2.py

+username = "python"
+userpassword = "123456"
+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("用户名错误，请重新输入")
+            print("温馨提示：您还有"+str(i)+"次登陆机会")
+            continue
+        if password != userpassword:
+            print("密码错误，请重新输入")
+            print("温馨提示：您还有"+str(i)+"次登陆机会")
+    else:
+        print("你的账号已被锁定")
+        exit()
+print("欢迎来到贝尔星球")
+