C# 将字符串解析为 TimeSpan
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Parse string to TimeSpan
提问by Serhat Ozgel
I have some strings of xxh:yym format where xx is hours and yy is minutes like "05h:30m". What is an elegant way to convert a string of this type to TimeSpan?
我有一些 xxh:yym 格式的字符串，其中 xx 是小时，yy 是分钟，如“05h:30m”。将这种类型的字符串转换为 TimeSpan 的优雅方法是什么？
采纳答案by Lars M?hlum
This seems to work, though it is a bit hackish:
这似乎有效，虽然它有点hackish：
TimeSpan span;
if (TimeSpan.TryParse("05h:30m".Replace("m","").Replace("h",""), out span))
MessageBox.Show(span.ToString());
回答by bdukes
Are TimeSpan.Parseand TimeSpan.TryParsenot options? If you aren't using an "approved" format, you'll need to do the parsing manually. I'd probably capture your two integer values in a regular expression, and then try to parse them into integers, from there you can create a new TimeSpan with its constructor.
是TimeSpan.Parse和TimeSpan.TryParse不选择呢？如果您不使用“已批准”的格式，则需要手动进行解析。我可能会在正则表达式中捕获您的两个整数值，然后尝试将它们解析为整数，从那里您可以使用其构造函数创建一个新的 TimeSpan。
回答by John Sheehan
DateTime.ParseExactor DateTime.TryParseExactlets you specify the exact format of the input. After you get the DateTime, you can grab the DateTime.TimeOfDaywhich is a TimeSpan.
DateTime.ParseExact或者DateTime.TryParseExact让您指定输入的确切格式。获得后DateTime，您可以抓取DateTime.TimeOfDay哪个是一个TimeSpan。
In the absence of TimeSpan.TryParseExact, I think an 'elegant' solution is out of the mix.
在没有 的情况下TimeSpan.TryParseExact，我认为“优雅”的解决方案是不合适的。
@buyutec As you suspected, this method would not work if the time spans have more than 24 hours.
@buyutec 如您所料，如果时间跨度超过 24 小时，则此方法将不起作用。
回答by Vaibhav
Here'e one possibility:
这是一种可能性：
TimeSpan.Parse(s.Remove(2, 1).Remove(5, 1));
And if you want to make it more elegant in your code, use an extension method:
如果您想让代码更优雅，请使用扩展方法：
public static TimeSpan ToTimeSpan(this string s)
{
TimeSpan t = TimeSpan.Parse(s.Remove(2, 1).Remove(5, 1));
return t;
}
Then you can do
然后你可以做
"05h:30m".ToTimeSpan();
