所以我有样品网址http://citrine.rcd.dev:8080/image/1582_125x125.jpg
正则表达式这场比赛
它的代码内置:
public string GetDerivativeUrl(long imageId, bool preserveTransparency, DerivativeSize size, bool allowCache, string designTags, int quality)
{
string tags = (designTags == null || designTags.Trim().Length == 0) ? "" : designTags;
string imageFormat = (preserveTransparency) ? "png" : "jpg";
if (quality > 0)
return String.Format("{0}/image/{4}{1}_{2}.{3}?qv={5}", GetUrlPrefix(imageId, allowCache), imageId, size.GetPixelSize(), imageFormat, tags, quality);
return String.Format("{0}/image/{4}{1}_{2}.{3}", GetUrlPrefix(imageId, allowCache), imageId, size.GetPixelSize(), imageFormat, tags);
}
我想从http://citrine.rcd.dev:8080/image/1582_125x125.jpg
得到http://citrine.rcd.dev:8080/image/1582.jpg
我该怎么办呢?
有什么不对的回报'的String.Format( “{0} /图像/ {3} {1} {2}”,GetUrlPrefix(图像标识,allowCache),图像标识,的imageformat,标签);'? – sehe
那么你想要在这个方法中创建字符串后更改字符串,还是要更改该方法,以便它返回所需的字符串? – sloth