改成 設(shè)置

UIFont * nameFont = [UIFont yb_PingFangOfSize:14];
UIFont * tagFont = [UIFont yb_PingFangOfSize:10];

CTFontRef ctNameFont = CTFontCreateWithName((__bridge CFTypeRef)nameFont.fontName, nameFont.pointSize, NULL);
    NSDictionary *referenceInfo = @{(id)kCTBaselineReferenceFont : (__bridge id)ctNameFont};
    [titleAtrr addAttribute:(id)kCTBaselineReferenceInfoAttributeName value:referenceInfo range:tagRange];
    [titleAtrr addAttribute:(id)kCTBaselineClassAttributeName value:(id)kCTBaselineClassIdeographicCentered range:tagRange];
    CFRelease(ctNameFont);