qq_23165839的博客

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)//只能输入数字和ABCDEFG,小字字母自动转换为大写字母 { if (!((e.KeyChar >= 48 && e.KeyChar <= 57) || (e.KeyChar &g...

private void textBox1_TextChanged(object sender, EventArgs e)//在textbox中每输入两个字符，中间加一个"-" { TextBox t = (TextBox)sender;//定义t为文本框本身 StringBuilder sb = new StringBuilder...

/// <summary> /// 将字符串(16进制)转换为字节数组 /// </summary> /// <param name="s">要转换的字符串</param> /// <returns></returns> public stati...