将下面的代码放入到js当中

function prefix() {
            var div = document.createElement('div');
            var cssText = '-webkit-transition:all .1s; -moz-transition:all .1s; -o-transition:all .1s; -ms-transition:all .1s; transition:all .1s;';
            div.style.cssText = cssText;
            var style = div.style;
            if (style.webkitTransition) {
                return '-webkit-';
            }
            if (style.MozTransition) {
                return '-moz-';
            }
            if (style.oTransition) {
                return '-o-';
            }
            if (style.msTransition) {
                return '-ms-';
            }
            return '';
        }

在需要的地方，或者赋值给变量使用

var cssPrefix = prefix();
alert(cssPrefix);