摘要: 测试环境:https://try.dot.net/ Console.WriteLine(string.IsNullOrWhiteSpace("")); --> True Console.WriteLine(string.IsNullOrWhiteSpace(" ")); --> True Conso 阅读全文
posted @ 2020-12-03 15:18 Cyber9527 阅读(248) 评论(0) 推荐(0) 编辑