如何获得以毫秒为单位的时间 [英] How to get time elapsed in milliseconds

问题描述

由于字符串连接的性能在 VB6 中非常弱，我正在测试几个 StringBuilder 实现.要查看它们运行了多长时间，我目前使用内置的

Since performance of string concatenation is quite weak in VB6 I'm testing several StringBuilder implementations. To see how long they're running, I currently use the built-in

Timer

函数只给我午夜后经过的秒数.

function which only gives me the number of seconds that have passed after midnight.

有没有办法(我猜是通过导入系统函数)获得毫秒精度的东西?

Is there a way (I guess by importing a system function) to get something with milliseconds precision?

推荐答案

是的，您可以使用 Win32 API:

Yes, you can use the Win32 API:

DWORD WINAPI GetTickCount(void);

要在 VB6 中导入它，请像这样声明:

To import it in VB6 declare it like this:

Private Declare Function GetTickCount Lib "kernel32" () As Long

在操作之前和之后调用它，然后计算经过的时间差.

Call it before the operation and after and then calculate the difference in time passed.

这篇关于如何获得以毫秒为单位的时间的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！