C# winform 启动外部程序

//class里面放入这段代码
[dllimport("shell32.dll")]
public static extern int shellexecute(intptr hwnd, stringbuilder lpszop, stringbuilder lpszfile, stringbuilder lpszparams, stringbuilder lpszdir, int fsshowcmd);

//需要打开的地方插入此段代码

shellexecute(intptr.zero, new stringbuilder("open"), new stringbuilder("test.exe"), new stringbuilder(""), new stringbuilder(@"c:\文件夹名"), 1);