for (var i=0; i < document.getElementsByClassName('gg_blank').length; i++) { var tabletd_gg=document.getElementsByClassName('gg_blank')[i].innerHTML; var count = 0; var res_gg = tabletd_gg.replace(/~/g, function(x){ var symbol = count++ == 1 ? '~<br/>' : x; return symbol;}); document.getElementsByClassName('gg_blank')[i].innerHTML=res_gg; }function(x){ var symbol = count++ == 1 ? '~<br/>' : x; return symbol;}這句話咋理解啊，主要不知道x代表的是啥，我好蠢
function(x)中的x是代表什么？
人到中年有點甜
2018-09-10 11:09:36