日常mark 获取文件夹下所有文件名数组

NSFileManager * fileManager = [NSFileManager defaultManager];

//文件夹路径

    NSString *path = [NSString stringWithFormat:@"%@/Documents/Download",NSHomeDirectory()];

    NSArray* tempFileList = [[NSArrayalloc]initWithArray:[fileManagercontentsOfDirectoryAtPath:patherror:nil]];