save project

diy.py

 username="python"
 userpassword="123456"
-name=input("你的用户名")
-password=input("你的密码")
-if name=username and password=userpassword:
+n=1
+while True:
+    name=input("你的用户名")
+    password=input("你的密码")
+    if name==username and password==userpassword:
         print("登入成功")
+        print("欢迎来到贝尔编程!")
+        break
+    elif n==3:
+        print("请待会登入")
+        break
+    else:
+        print("登入失败，请重新登入")
+        n=n+1    
\ No newline at end of file