JS點擊圖片更改照片

<img src="../../img/20190224185111.png" alt="" id="zhaopian"/>

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//定義變數
var img = "";
//圖片點擊
$("#zhaopian").click(function () {
//賦值獲取圖片路徑
img = $(this).attr('src');
//判斷圖片路徑是否匹配
if (img == "../../img/20190224185111.png") {
//更改圖片路徑
$("#zhaopian").attr("src", "../../img/20190225140053.png")
}
else {
//更改照片路徑
$("#zhaopian").attr("src", "../../img/20190224185111.png")
}