iOS 检查本地是否存在某个文件

Objective-C版

// 取得沙盒目录NSString *localPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];// 要检查的文件目录NSString *filePath = [localPath  stringByAppendingPathComponent:@"abc.doc"];NSFileManager *fileManager = [NSFileManager defaultManager];if ([fileManager fileExistsAtPath:filePath]) {    NSLog(@"文件abc.doc存在");}else {    NSLog(@"文件abc.doc不存在");}

Swift版

// 取得沙盒目录let localPath: NSString = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).first!// 要检查的文件目录let filePath = localPath.stringByAppendingPathComponent("abc.doc")let fileManager = NSFileManager.defaultManager()if fileManager.fileExistsAtPath(filePath) {    print("文件abc.doc存在")}else {    print("文件abc.doc不存在")}