在ios中，当图像名称未知时如何从ftp下载图像
[英]How to download a image from ftp when a image name is unknown ,in ios
问题描述
I am working on downloading a image from ftp ,where my ftp contains multiple images with different names generated every time in a folder.I just need to download a image whose name contains thumbs.jpg in it.
我正在从 ftp 下载图像，其中我的 ftp 包含每次在文件夹中生成的具有不同名称的多个图像。我只需要下载名称中包含 thumbs.jpg 的图像。 For ex i have 4 images with names例如，我有 4 张带有名称的图像
2342345232thumbs.jpg
453455345334snap.jpg,
4534532356pic.jpg,
1240897387trim.jpg
from which i want to download a image name which contains thumbs.jpg .我想从中下载包含thumbs.jpg的图像名称。
how can i achieve this .please suggest我怎样才能做到这一点。请提出建议
1 个解决方案
解决方案1
1 已采纳 2012-11-30 11:10:03
Assuming you get the contents of the directory or atleast can retrieve the filenames, you could try string matching using NSRange range = [imageName rangeOfString:@"thumbs.jpg"]; if (range.location != NSNotFound) // found match假设您获取目录的内容或至少可以检索文件名，您可以尝试使用NSRange range = [imageName rangeOfString:@"thumbs.jpg"]; if (range.location != NSNotFound) // found match字符串匹配NSRange range = [imageName rangeOfString:@"thumbs.jpg"]; if (range.location != NSNotFound) // found match NSRange range = [imageName rangeOfString:@"thumbs.jpg"]; if (range.location != NSNotFound) // found match and then download that particular image.HTH. NSRange range = [imageName rangeOfString:@"thumbs.jpg"]; if (range.location != NSNotFound) // found match ，然后下载该特定图像。HTH。
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