代码如下 | 复制代码 |
脚本之家 functionls(){ varp=true;//开关,true开,false关 varxx=document.getElementById('xx'); varxxleft = parseInt(xx.style.left); varspeed = 20; vart=setInterval(rollRight,speed); //向左移动 functionrollLeft(){ if(p){ xxleft--; xx.style.left = xxleft+'px'; if(xxleft <=0 ){ clearInterval(t); t=setInterval(rollRight,speed); } } } //向右移动 functionrollRight(){ if(p){ xxleft++; xx.style.left = xxleft+'px'; if(xxleft >= 300){ clearInterval(t); t=setInterval(rollLeft,speed); } } } } ls(); |
运行效果图如下: