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<!DOCTYPE html> <html> <head> <title>获取图片原始尺寸</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script> function getSize(event) { var str = "图片的显示尺寸：" + event.width + " x " + event.height; str += "<br/>"; str += "图片的原始尺寸：" + event.naturalWidth + " x " + event.naturalHeight; document.getElementById("result").innerHTML = str; } </script> </head> <body> <img src="https://www.baidu.com/img/bd_logo1.png" style="width: 50px;" onload="getSize(this)"> <div id="result"></div> </body> </html>