为字体粗细设置jQuery属性 [英] Setting jQuery attribute for font-weight

问题描述

我正在尝试更改元素的字体粗细.我尝试了以下操作，但似乎不起作用:

I am trying to change the font-weight of an element. I tried with the following but it doesn't seem to work:

$("#opt_" + i).attr("font-weight", "bold");

prop和attr有什么区别?这与我的问题有关吗?

Also what's the difference between prop and attr? Is that something to do with my problem?

推荐答案

使用 .css() >函数而不是.attr()

use the .css() function instead of .attr()

$("#opt_" + i).css("font-weight", "bold")

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