一、关闭窗体内存不释放
[DllImport("kernel32.dll")]
private static extern bool SetProcessWorkingSetSize(IntPtr process, int minSize, int maxSize);
//关闭窗体按钮
private void btnReturn_Click(object sender, EventArgs e)
{
this.Close();
FlushMemory();
}
//刷新存储器
private static void FlushMemory()
{
GC.Collect();
GC.WaitForPendingFinalizers();
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle, -1, -1);
}
}
来源：C# winform在关闭窗体的时候及时释放内存问题 - QianTM - 博客园 (cnblogs.com)
标签：FlushMemory,C#,汇总,private,窗体,内存,static From： https://www.cnblogs.com/Mars-0603/p/18062361