//获dom对象的innerText的取值

    function getInnerText(element) {

        //判断当前浏览器是否支持innerText

        if(typeof element.innerText  === "string") {

            //支持返回innerText

            return element.innerText;

        }else{

            //不支持返回textContent

            return element.textContent;

        }

    };

    //获dom对象的innerText的取值

    function getInnerText(element) {

        //判断当前浏览器是否支持innerText

        if(typeof element.innerText  === "string") {

            //支持返回innerText

            return element.innerText;

        }else{

            //不支持返回textContent

            return element.textContent;

        }

    };