JS循环中等待2秒，阻塞2s

$("#financePlanLoanInvestorList .items .col_4").children("a:eq(2)")
for(var i=0;i<$("#financePlanLoanInvestorList .items .col_4").length;i++){
var _this = $("#financePlanLoanInvestorList .items .col_4")[i];
if(i != 0){

   
   
    var start = (new Date()).getTime();
	// 阻塞2s
    while((new Date()).getTime() - start < 1000) {
        continue;
    }
    // 循环点击下载
    $(_this).children("a:eq(2)")[0].click()
	
}
}