Winform之TextBox输入日期格式验证yyyy-mm-dd的实例与正则表达式，需要的朋友可以参考一下

代码如下:private void button1_Click(object sender, EventArgs e)        {            string s = textBox1.Text.ToString();            bool b = ValidateDataTime(s);            string rs = “”;            if (b)            {                rs = “true”;