11 2021 档案
摘要:private void textOsDlp_KeyPress(object sender, KeyPressEventArgs e) //文本框按键事件 { this.lberror.Visible = false; //新建label信息提示 e.Handled = true; if (e.Ke
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摘要:using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.
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