麻烦看一下这句的代码啥子意思
str_tr[i].setAttribute('onmouseover',document.all ? eval(function(){this.style.background="#f2f2f2"}) : 'javascript:this.style.background="#f2f2f2"');
str_tr[i].setAttribute('onmouseover',document.all ? eval(function(){this.style.background="#f2f2f2"}) : 'javascript:this.style.background="#f2f2f2"');
2021-02-13
举报