This article introduces you to the effect of clicking to cycle through js through the example code. Friends who need it can refer to it
No more nonsense, I will directly post the code for you. The specific code is as follows:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>单击循环切换图片</title> <script> var i = 1; function nextImg(){ i++; //步骤2:获取页面元素 var next = document.getElementById("nImg"); //步骤3:更改元素的src属性 next.src = "img/"+i+".jpg"; if(i==3){ i=0; } } </script> </head> <body> <p> <!--步骤1:绑定onclick事件--> <button onclick="nextImg()">下一张</button> <br /> <!--需自己准备3张图片--> <img src="img/1.jpg" id="nImg" width="600px" height="400px" /> </p> </body> </html>
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