label的创建

 _label= [[UILabelalloc]init];

    _label.autoresizingMask =UIViewAutoresizingFlexibleWidth;

    _label.text =@"我推广的人";

    _label.textColor = [UIColorgrayColor];

    _label.textAlignment =NSTextAlignmentCenter;

    _label.lineBreakMode =NSLineBreakByWordWrapping;

    _label.font = [UIFontfontWithName:@"AmericanTypewriter"size:14];

    _label.numberOfLines =1;

    [_labelsizeToFit];

    _label.adjustsFontSizeToFitWidth =YES;

    _label.userInteractionEnabled =YES;

    [self.viewaddSubview:_label];

    [_labelmas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.mas_equalTo(5);

        make.top.mas_equalTo(80);

        

    }];