说明: //写入文件 private void btnWriteAll_Click(object sender, EventArgs e) { if (this.txtcreatefile.Text.Length == 0) { MessageBox.Show("路径不能为空!", "信息提示"); this.txtcreatefile.Focus(); } else { if (File.Exists(this.txtcreatefile.Text.Trim()) == true) { Dialog
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