测试高亮

using System.Runtime.InteropServices; [DllImport("kernel32.dll", EntryPoint = "GetSystemDefaultLCID")] public static extern int GetSystemDefaultLCID(); [DllImport("kernel32.dll", EntryPoint = "SetLocaleInfoA")] public static extern int SetLocaleInfo(int Locale, int LCType, string lpLCData); public const int LOCALE_SLONGDATE = 0x20; public const int LOCALE_SSHORTDATE = 0x1F; public const int LOCALE_STIME = 0x1003; private void button1_Click(object sender, EventArgs e) { try

 { int x = GetSystemDefaultLCID(); SetLocaleInfo(x, LOCALE_STIME, "HH:mm:ss");        //时间格式 

                SetLocaleInfo(x, LOCALE_SSHORTDATE, "yyyy-MM-dd");   //短日期格式 

                SetLocaleInfo(x, LOCALE_SLONGDATE, "yyyy-MM-dd");   //长日期格式 

                MessageBox.Show("OK"); } catch (Exception ex) { MessageBox.Show(ex.Message); } }