很简单的点击事件

var which;
var isPress = 0;
var main = document.getElementById(‘main‘);  //这边自己改自己的地址就行
main.ontouchstart = function (event) {
    event.preventDefault();
    var e = window.event || event;
    if( isPress == 0 ) {
        isPress = 1;
        which = ‘singleFinger‘;
    } else {
        if (e.touches[1]) {
            which = ‘doubleFinger‘;
        }else{
            which = ‘doubleClick‘;
        };
    };
    setTimeout( yanChi , 500 );
};
function yanChi() {
    isPress = 0;
    console.log(which);
};