在LCD上实现成本/每次代码（C编程） [英] Implementing a cost/per time code on an LCD (C programming)

问题描述

我正在设计一个成本计算系统，它测量某人在公园的时间，而不是计算总成本（每分钟0.10美元）。我不是试图在液晶屏上显示它。这是在C编程中，我仍然试图使用计时器。任何帮助将不胜感激



我尝试过：



我我可以将数据移动到LCD屏幕上。但是，我不知道在尝试测量时间并乘以它时从哪里开始。

Hi,
I am trying to design a costing system, which measures the time somebody is in a park and than calculates the total cost say ($0.10 per minute). I am than trying to display this on an LCD screen. This is in C programming and am still trying to get my head around using timers. Any help would be appreciated

What I have tried:

I am okay at moving data onto the LCD screen. However, I do not know where to start when trying to take a measured time and multiply it.

推荐答案

每分钟0.10）。我不是试图在液晶屏上显示它。这是在C编程中，我仍然试图使用计时器。任何帮助将不胜感激



我尝试过：



我我可以将数据移动到LCD屏幕上。但是，我不知道在尝试测量时间并乘以它时从哪里开始。

0.10 per minute). I am than trying to display this on an LCD screen. This is in C programming and am still trying to get my head around using timers. Any help would be appreciated

What I have tried:

I am okay at moving data onto the LCD screen. However, I do not know where to start when trying to take a measured time and multiply it.

捕获活动开始和结束时的时间，然后计算差异：

Capture the time at the start and end of the activity, and then calculate the difference:

time_t timeStart = time();
// do the activities
time_t timeEnd = time();
long seconds = timeEnd - timeStart;

参见 time，_time32，_time64 [ ^ ]。

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