test.js

var sleep = function(time) {
    var startTime = new Date().getTime() + time*1000;
    while(new Date().getTime() < startTime) {}
};


var find_and_click = function(item_id) {
    console.log("start")
    i = 0;
    while(i<10) {
        i++
        if(document.getElementById(item_id)) 
        { 
            document.getElementById(item_id).click()
            break;
        }    
        console.log("loop")
        // sleep(1);
    }
    console.log("stop")

}

window.onload = doIt; 
// document.ready = doIt;
function doIt() { 
    //  $(document).ready(function () { 
        console.log("onload")
        if ( document.getElementById("addToCartSubmit") != null && document.getElementById("notInStock") == null )
        { 
            console.log("buy")
        
            //1.放入购物袋
            find_and_click("addToCartSubmit")

            window.location.href="https://secure.louisvuitton.cn/zhs-cn/cart"
            // //2.打开购物袋
            // find_and_click("header-shoppingBag")


            // //3.立即结账
            // find_and_click("viewTaxesAndDetails")


            // //4.提交
            // find_and_click("proceedToCheckoutButton")

            // //5.提交
            // find_and_click("globalSubmit")

            // //6.打钩
            // find_and_click("acceptTerms")


            // //7.提交订单
            // find_and_click("globalSubmit")


        
        }else{

            // window.onload = function(){console.log("ready")};
            console.log("reload")
            // sleep(30);
            location.reload(true);

        } 
    // }
    // );
}