读取简单的CSV文件

NSString *path = [[NSBundle mainBundle] pathForResource:@"ECG_Data" ofType:@"csv"];NSString *contents = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];NSArray *contentsArray = [contents componentsSeparatedByCharactersInSet:[NSCharacterSet newlineCharacterSet]];NSInteger idx;    for (idx = 0; idx < contentsArray.count; idx++) {    NSString* currentContent = [contentsArray objectAtIndex:idx];    NSArray* timeDataArr = [currentContent componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@","]];}