摘要: 2020-05-04 每日一例第46天 1.后台代码 OpenFileDialog op = new OpenFileDialog(); if (op.ShowDialog()==DialogResult.OK) { MessageBox.Show("文字长度:"+File.Open(op.File 阅读全文
posted @ 2020-05-04 23:38 winnerljs 阅读(7962) 评论(0) 推荐(0) 编辑