save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
+    i>0:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
@@ -8,6 +9,8 @@ while True:
         break
         break
     if name!=username:
     if name!=username:
         print("用户错误!请重新输入")
         print("用户错误!请重新输入")
+        print('你还有'+str(i)+'次登录机会')
+        continue
     if password!=userpassword:
     if password!=userpassword:
         print('密码错误!请重新输入')
         print('密码错误!请重新输入')
         exit()
         exit()