改變UITextView文字之間的間距

- (void)viewDidLoad {
    [super viewDidLoad];
    [self showInfoPage];
    [textview setEditable:NO];
    [self selfAdaption];
}
- (void)selfAdaption{
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init] ;
        NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:16], NSParagraphStyleAttributeName:paragraphStyle};
    paragraphStyle.lineSpacing = 10;
    textview.attributedText = [[NSAttributedString alloc]initWithString:textview.text attributes:attributes];
}