C#限定输入,只能输入字母或数字
原创来自http://www.luofenming.com/show.aspx?id=ART2018091000001，如转载请保留此地址private void textBox1_KeyPress(object sender, KeyPressEventArgs e){// e.KeyChar == 8 退格 删除if ((e.KeyChar >= a && e.KeyChar <= z) || (e.KeyChar >= A &am…
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原创来自http://www.luofenming.com/show.aspx?id=ART2018091000001，如转载请保留此地址private void textBox1_KeyPress(object sender, KeyPressEventArgs e){// e.KeyChar == 8 退格 删除if ((e.KeyChar >= a && e.KeyChar <= z) || (e.KeyChar >= A &am…