摘要： 1 function(){ 2 elem.addEventListener('touchstart', start , false) 3 elem.addEventListener('touchend', end , false) 4 elem.addEventListener('touchmove', move , false) 5 var coefficient = .02 6 var fingers 7 8 var threshold = {'dbl_tap':400, 'tap':250} 9 var st 阅读全文