从url ios中提取文件夹ID

Question

我想从此网址中提取文件夹ID

https://apis.live.net/v5.0/folder.1ee916c3057a1eaf.1EE916C3057A1EAF!2204/files/wpid-full-hd-wallpapers-1080p-citimortgage-1.jpg?suppress_response_codes=true&overwrite=false

有可能吗？

Answer 1

是的，确实如此。 NSString提供方法- (NSString *)substringWithRange:(NSRange)aRange。

您可以使用NSRange创建NSMakeRange。因此，假设您的文件夹ID从字符串的n-th索引开始并且长度为l，您可以检索文件夹ID，如下所示：

NSString *folderID = [url substringWithRange:NSMakeRange(n, l)];

Answer 2

试试这段代码：

NSString *url = @"https://apis.live.net/v5.0/folder.1ee916c3057a1eaf.1EE916C3057A1EAF!2204/files/wpid-full-hd-wallpapers-1080p-citimortgage-1.jpg?suppress_response_codes=true&overwrite=false";
NSArray *splitStr = [url componentsSeparatedByString:@"/"];
NSString *folderId = [splitStr objectAtIndex:4];
NSLog(@"folderId = %@", folderId);

输出：folderId = folder.1ee916c3057a1eaf.1EE916C3057A1EAF!2204