///设置每行间距
NSMutableDictionary *textDict = [NSMutableDictionary dictionary];
textDict[NSKernAttributeName] = @(1);
label.attributedText = [[NSAttributedString alloc] initWithString:label.text attributes:textDict];
NSMutableAttributedString *text1 = [[NSMutableAttributedString alloc] initWithString:label.text];
//设置缩进、行距
NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
style.alignment = NSTextAlignmentLeft;
style.lineSpacing = 5;
[text1 addAttribute:NSParagraphStyleAttributeName value:style range:NSMakeRange(0, text1.length)];
label.attributedText = text1;
lable.frame = CGRectMake(0, 0, contexWidth,titleSize.height + (titleSize.height/singetHeight ) * 5);