xiaoyou/addons/third/bootstrap.js

if (Config.modulename === 'index' && Config.controllername === 'user' && ['login', 'register'].indexOf(Config.actionname) > -1 && $("#register-form,#login-form").size() > 0) {
    $('<style>.social-login{display:flex}.social-login a{flex:1;margin:0 2px;}.social-login a:first-child{margin-left:0;}.social-login a:last-child{margin-right:0;}</style>').appendTo("head");
    $("#register-form,#login-form").append('<div class="form-group social-login"></div>');
    if (Config.third.status.indexOf("wechat") > -1) {
        $('<a class="btn btn-success" href="' + Fast.api.fixurl('/third/connect/wechat') + '"><i class="fa fa-wechat"></i> 微信登录</a>').appendTo(".social-login");
    }
    if (Config.third.status.indexOf("qq") > -1) {
        $('<a class="btn btn-info" href="' + Fast.api.fixurl('/third/connect/qq') + '"><i class="fa fa-qq"></i> QQ登录</a>').appendTo(".social-login");
    }
    if (Config.third.status.indexOf("weibo") > -1) {
        $('<a class="btn btn-danger" href="' + Fast.api.fixurl('/third/connect/weibo') + '"><i class="fa fa-weibo"></i> 微博登录</a>').appendTo(".social-login");
    }
}