save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=0
 while True:
+    if i=3:
        name = input("请输入用户名:")
        password = input("请输入密码:")
     if name == username and password == userpassword:
@@ -8,7 +10,9 @@ while True:
         break
     if username!=name:
         print("姓名错误")
+        i=i+1
     else：userpassword!=password
         print("密码错误")
+        i=i+1
     print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
\ No newline at end of file