left的值在网页里总是不对，用的别人的模板

Question

var myLeft; 

       rePoint();

    function rePoint() { 

        var myLeftNumber = parseInt((document.body.clientWidth - 1100) / 2); 

        if (myLeftNumber < 0) { 

            myLeftNumber = 0; 

        }

        if (myLeft == myLeftNumber) { 

            return; 

        }

        myLeft = myLeftNumber; 

    } 

hidden.css({width:"1100px",height:"375px",top:"0","left":"0px","opacity":0,});

hidden.stop(true,true).animate({width:"1100px",height:"375px",top:"0",left:"0px",opacity:1,},timer);

curr.stop(true,true).animate({width:"1100px",height:"375px",top:"0","left":"50%",opacity:1,},timer);

next.stop(true,true).animate({width:"1100px",height:"375px",top:"0","left":"0px","opacity":0,},timer,function(){next.find("span").css("opacity",0); isMoving = false;});

//prev  -->  curr     prev中的图片li轮换到curr的位置      其他一次轮换

prev.find("span").css("opacity",0);

$(".main_banner_box li").find("p").css({"bottom":"-50px"});//所有标题隐藏

prev.stop(true,true).animate({width:"1100px",height:"375px",left:"myLeft",top:0,opacity:1},timer,function(){

$(this).find("p").animate({"bottom":"0px"}); //当前这张图片的标题运动出来

});

index_2--;

}else{ //执行next 操作

if(index_2+2>=len){ //index_2 3 4

hidden=$("#imgCard"+(index_2+2-len));// 0 1

}else{ //index_2 0 1 2

hidden=$("#imgCard"+(index_2+2));// 2 3 4

}

prev.css("z-index","1");

next.css("z-index","5"); //点击next按钮  让next位置上的这张图片 层级最高 显示

curr.css("z-index","2");

hidden.css("z-index","1");

//当index_2自增，各图片往左运动效果

hidden.css({width:"1100px",height:"375px",top:"0px","left":"50%","opacity":0});

hidden.stop(true,true).animate({width:"1100px",height:"375px",top:"0px",opacity:1},timer);

curr.stop(true,true).animate({width:"1100px",height:"375px",top:"0px",left:"0px",opacity:1},timer);

//next  -->  curr     next中的图片li轮换到curr的位置      其他一次轮换

next.find("span").css("opacity",0);

$(".main_banner_box li").find("p").css({"bottom":"-50px"});//所有标题隐藏

next.stop(true,true).animate({width:"1100px",height:"375px",left:"myLeft",top:0,opacity:1,margin:"0 auto"},timer,function(){

$(this).find("p").animate({"bottom":"0px"}); //当前这张图片的标题运动出来

});

prev.stop(true,true).animate({width:"1100px",height:"375px",left:"0px",top:"0px",opacity:0},timer,function(){

isMoving = false;

}); 

index_2++;

}

Answer 1

我姑且一说哈，没有实际运行你的程序，只是扫了一下发现left:"myLeft"这样写是不对的，你的myLeft是一个变量，不用加引号，就写left:myLeft就行了