RT
我实现出来了，但是，在ios 10上面有问题。

NSString *text = [label text]; UIFont *font = [label font]; CGRect rect = [label frame]; CTFontRef myFont = CTFontCreateWithName((__bridge CFStringRef)([font fontName]), [font pointSize], NULL); NSMutableAttributedString *attStr = [[NSMutableAttributedString alloc] initWithString:text]; [attStr addAttribute:(NSString *)kCTFontAttributeName value:(__bridge id)myFont range:NSMakeRange(0, attStr.length)]; CTFramesetterRef frameSetter = CTFramesetterCreateWithAttributedString((__bridge CFAttributedStringRef)attStr); CGMutablePathRef path = CGPathCreateMutable(); CGPathAddRect(path, NULL, CGRectMake(0,0,rect.size.width,100000)); CTFrameRef frame = CTFramesetterCreateFrame(frameSetter, CFRangeMake(0, 0), path, NULL); NSArray *lines = (__bridge NSArray *)CTFrameGetLines(frame); NSMutableArray *linesArray = [[NSMutableArray alloc]init]; //获取到每一行数组 for (id line in lines){ CTLineRef lineRef = (__bridge CTLineRef )line; CFRange lineRange = CTLineGetStringRange(lineRef); NSRange range = NSMakeRange(lineRange.location, lineRange.length); NSString *lineString = [text substringWithRange:range]; [linesArray addObject:lineString]; }

但是这样在ios 10上面有问题，跪求大神