auto save

diy1.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-name=input("请输入账号:")
-password=input("请输入密码:")
-if name==username and password==userpassword:
-    print("登录成功")
-else:
-    print("登录失败")
+i=3
+while True:
+    if i>0: 
+        name=input("请输入账号:")
+        password=input("请输入密码:")
+        i-=1 #i=i-1
\ No newline at end of file
+        if name==username and password==userpassword:
+            print("登录成功")
+        else:
+            print("登录失败")
+    else:
+        exit()
+print("欢迎来到贝尔编程！")
\ No newline at end of file