测试捕获效率，Test1表明应用packet.dll进行捕获的基本步骤 Test2通过调用packet.dll进行捕获 Test4和Test2基本相同，只是直接调用packet.sys驱动的导出函数，免去了packet.dll的封装过程 -Capture efficiency test, Test1 application packet.dll shows the basic steps to capture Test2 by