我制作了這個鼠標(biāo)懸停圖像縮放頁面。但我希望輸出顯示在左側(cè)，并且僅當(dāng)有人將鼠標(biāo)懸停在其上時。在此代碼中，輸出窗口不斷打開。這是我的代碼：function imageZoom(imgID, resultID) {  var img, lens, result, cx, cy;  img = document.getElementById(imgID);  result = document.getElementById(resultID);  /*create lens:*/  lens = document.createElement("DIV");  lens.setAttribute("class", "img-zoom-lens");  /*insert lens:*/  img.parentElement.insertBefore(lens, img);  /*calculate the ratio between result DIV and lens:*/  cx = result.offsetWidth / lens.offsetWidth;  cy = result.offsetHeight / lens.offsetHeight;  /*set background properties for the result DIV:*/  result.style.backgroundImage = "url('" + img.src + "')";  result.style.backgroundSize = (img.width * cx) + "px " + (img.height * cy) + "px";  /*execute a function when someone moves the cursor over the image, or the lens:*/  lens.addEventListener("mousemove", moveLens);  img.addEventListener("mousemove", moveLens);  /*and also for touch screens:*/  lens.addEventListener("touchmove", moveLens);  img.addEventListener("touchmove", moveLens);  function moveLens(e) {    var pos, x, y;    /*prevent any other actions that may occur when moving over the image:*/    e.preventDefault();    /*get the cursor's x and y positions:*/    pos = getCursorPos(e);    /*calculate the position of the lens:*/    x = pos.x - (lens.offsetWidth / 2);    y = pos.y - (lens.offsetHeight / 2);    /*prevent the lens from being positioned outside the image:*/    if (x > img.width - lens.offsetWidth) {      x = img.width - lens.offsetWidth;    }    if (x < 0) {      x = 0;    }    if (y > img.height - lens.offsetHeight) {      y = img.height - lens.offsetHeight;    }    if (y < 0) {      y = 0;    }    /*set the position of the lens:*/    lens.style.left = x + "px";    lens.style.top = y + "px";    /*display what the lens "sees":*/    result.style.backgroundPosition = "-" + (x * cx) + "px -" + (y * cy) + "px";  }該代碼運行良好，但結(jié)果應(yīng)該在右側(cè)，并且僅當(dāng)用戶將鼠標(biāo)懸停在其上時才顯示。