摘要：1.判断电脑上是否安装Excel Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application(); if (xlApp == null) { MessageBox. 阅读全文

摘要：设置DrawItem事件 private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)//绘制tabcontrol控件的标签颜色和字体大小 { SolidBrush back; SolidBrush white; Soli 阅读全文