save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+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   
+        print("用户名和密码错误!请重新输入")
+        if name != username:
+            print("x")
+            continue
+        if password !=  userpassword:
+            print("xx")
+            exit()
+    else:
+        print("滚，sb!")