private void FormManagerInfo_FormClosing(object sender, FormClosingEventArgs e)
{
//与单例保持一致,清理静态字段_form
_form = null;
}
private void FormManagerInfo_FormClosing(object sender, FormClosingEventArgs e)
{
_form = null;
}
private void FormManagerInfo_FormClosing(object sender, FormClosingEventArgs e)
{
//与单例保持一致
//出现这种代码的原因：Form的close()会释放当前窗体对象
_form = null;
}
