save project

diy2.py

+i=3
+username="12"
+userpassword="13"
+while True:
+    if i>1:
+        name=input("请输入名字")
+        password=input("请输入密码")
+        i-=1
+        if name==username and password==userpassword:
+            print("登陆成功")
+            break
+        if name!=username:
+            print("用户名错误")
+            continue
+        if password!=userpassword:
+            print("密码错误")
+    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