用“/”分隔字符串。角色，并调整它的任何一面 [英] Splitting a string by the "/" character, and adjusting either side of it

问题描述

大家好，



我有一个字符串，中间有一个/。这个角色的任何一边都有数字，但是这个字符串可以随时改变大小，但在它的中间总是有一个/。



我需要找到/之前的字符数和/之后的字符数。



/之前的最大字符数是4，/后的最大字符数为2.



我需要查看字符串第一部分的字符数是否为4 ，如果它不是，我需要在它的开头添加多少零'以使它长4个字符。



然后我需要看看字符串第二部分中的字符数是否为2，如果不是，我需要在字符串的那一部分的开头添加一个零。



非常感谢任何帮助，

谢谢。

Hello everyone,

I have a string that has a "/" in the middle of it. Either side of this character there are numbers, but this string can change size at any time, but there is always a "/" in the middle of it.

I need to find the number of characters before the "/" and the number of characters after the "/".

The maximum number of characters before the "/" is 4, and the maximum number of characters after the "/" is 2.

I need to see if the number of characters in the first part of the string is 4, if it isn''t, I need to add however many zero''s to the start of it to make it 4 characters long.

Then I need to see if the number of characters in the second part of the string is 2, if it isn''t, I need to add a zero to the start of that part of the string.

Any help is greatly appreciated,
thanks.

推荐答案

我认为提取这两个部分的正则表达式会做诀窍：

I think a regular expression to extract both parts would do the trick here :

Regex regex = new Regex(@"^(?<LeftPart>[\d]?)/(?<RightPart>[\d]?)

，RegexOptions.Compiled | RegexOptions.IgnoreCase）;
匹配m = regex.Match（yourString）;

if （m.Success）
{
string left = m.Groups [ LeftPart]。值;
string right = m.Groups [ RightPart]值。

while （left.Length < 4 ）
left.Insert（ 0 ， 0\" ）;

while （right.Length < 2 ）
right.Insert（ 0 ， 0\" ）;
}
其他
{
// < span class =code-comment>处理错误
}

", RegexOptions.Compiled | RegexOptions.IgnoreCase); Match m = regex.Match(yourString); if (m.Success) { string left = m.Groups["LeftPart"].Value; string right = m.Groups["RightPart"].Value; while (left.Length < 4) left.Insert(0, "0"); while (right.Length < 2) right.Insert(0, "0"); } else { // Handle error }

希望这会有所帮助。

问候。

Hope this helps.
Regards.

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