蓝雪森林

摘要： 代码：private void button1_Click(object sender, EventArgs e) { StringBuilder sb = new StringBuilder(); //遍历窗体上所有控件 foreach (Control ctr in this.Controls) { //判断该控件是不是CheckBox if (ctr is CheckBox) { //将ctr转换成CheckBox并赋值给ck CheckBox ck = ctr as CheckBox; if (ck.Checked) { sb.AppendLine(ck.Text); } } } th 阅读全文