WeChat public platform development One-click follow WeChat public platform account

var addWxContact = function(wxid, cb)
{
    if (typeof WeixinJSBridge == 'undefined') return false;
        WeixinJSBridge.invoke('addContact', {
            webtype: '1',
            username: 'gh_204936aea56d'
        }, function(d) {
            // 返回d.err_msg取值，d还有一个属性是err_desc
            // add_contact:cancel 用户取消
            // add_contact:fail　关注失败
            // add_contact:ok 关注成功
            // add_contact:added 已经关注
            WeixinJSBridge.log(d.err_msg);
            cb && cb(d.err_msg);
        });
};