使用-[NSURL path]方法:

NSLog(@"%@", myUrl.path);

从文档中:

URL的路径，未使用stringByReplacingPercentEscapesUsingEncoding:方法进行转义.如果接收方不符合RFC 1808，则返回nil.

The path of the URL, unescaped with the stringByReplacingPercentEscapesUsingEncoding: method. If the receiver does not conform to RFC 1808, returns nil.

如果此URL对象包含文件URL(由isFileURL确定)，则此方法的返回值适合于输入到NSFileManager或NSPathUtilities的方法中.如果路径中带有斜线，则将其删除.

If this URL object contains a file URL (as determined with isFileURL), the return value of this method is suitable for input into methods of NSFileManager or NSPathUtilities. If the path has a trailing slash it is stripped.

根据RFC 3986，授权(主机名和端口)部分之后的斜杠被视为路径的一部分.

Per RFC 3986, the leading slash after the authority (host name and port) portion is treated as part of the path.

请注意，您可以使用+[NSURL fileURLWithPath:]创建这样的URL.

Note that you can create such a URL with +[NSURL fileURLWithPath:].