开发技巧2
1、ASCII碼值轉(zhuǎn)換為字母
?
View Code private void button1_Click(object sender, EventArgs e){
try
{
if (textBox1.Text == "")
{
MessageBox.Show("ASCII碼值不能為空", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
textBox1.Focus();
}
else
{
byte[] array = new byte[1];
array[0] = (byte)(Convert.ToInt32(textBox1.Text.Trim()));
textBox2.Text = Convert.ToString(System.Text.Encoding.ASCII.GetString(array));
}
}
catch
{
MessageBox.Show("請輸入合法的ASCII碼值", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
textBox1.Text = "";
textBox1.Focus();
}
}
2去除字符串前后所有字符
View Code /// <summary>/// 去除字符串前后的所有空白字符
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static string trim(string s)
{
Regex regexToTrim = new Regex(@"(^\s*)|(\s*$)", RegexOptions.ECMAScript); // C#: 匹配任何空白字符, 與 [ \f\n\r\t\v] 等效
return regexToTrim.Replace(s, "");
}
轉(zhuǎn)載于:https://www.cnblogs.com/sjllef/archive/2011/03/01/1968246.html
總結(jié)
