1.数组转字符串
companyindustry = new Array();
$(".selectindustry").each(function(index, el) {
companyindustry.push($(this).val());
});
companyindustryid = companyindustry.join(",");
2.对象转json字符串
var taxratingarr = [];
$(".taxrating").each(function(i){
taxratingarr[i] = {'year':$(this).data('year'),'rank':$(this).val()};
})
taxratings = JSON.stringify(taxratingarr);
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