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DOM light switch case

2022-07-03 21:37:00 【Rice field prospector】

<body>
    <img src="./off.gif" id="light">
    <script> //1. Get the picture object  var light = document.getElementById("light"); var flag = false;// It means that the light is off  //2. Bind click event  light.onclick = function(){
       if(flag){
       // Judge if the light is on, then turn it off  light.src = "./on.gif" flag = false; }else{
       // Judge if the light is off, turn it on  light.src = "./off.gif" flag = true; } } </script>
</body>