//发送私人信息 private void button1_Click_1(object sender, EventArgs e) { if (string.IsNullOrWhiteSpace(this.textBox2.Text)) { MessageBox.Show("qq号不能为空"); return; } if (string.IsNullOrWhiteSpace(this.textBox3.Text)) { MessageBox.Show("发送消息不能为空"); return; } int content = coolQApiForTest.SendPrivateMsg(Convert.ToInt64(this.textBox2.Text), this.textBox3.Text); textBox4.Text = "" + content; MessageBox.Show("发送完成"); }