update wx_helper

setInterval(post_to_wx, 1000);

function handleOutURL(url) {

    console.log("处理链接 " + url);

    wx.miniProgram.navigateTo({

        url: '/pages/index/redirect?outURL=' + encodeURIComponent(url),

    });

}

function override_onclick(event) {

    if (window.is_miniprogram) {

        let url = event.currentTarget.getAttribute('href');

        let domain = new URL(url);

            return;

        }

    if (window.is_miniprogram) {

        event.preventDefault();

        console.log("小程序环境，拦截外部链接。");

        handleOutURL(url);