ie8、ie9获取input文件大小

比眉伴天荒 2023-07-12 05:07 1阅读 0赞

这两天看了 js 在 ie9 上的兼容性问题，发现 ie8、ie9 要获取 file 类型的 input 的文件大小，很麻烦。

**首先要 ie8、ie9 浏览器要开启对未标记的 ActiveX 控件和插件初始化并执行脚本，而这已经被 ie 标记为风险操作，也不推荐。**

操作如下：

Internet选项 - 安全 - Internet - 自定义级别 - ActiveX控件和插件 - 对未标记为可安全执行脚本的ActiveX控件初始化并执行脚本（不安全）- 点击启用 - 确定

![image\_\_20200307075408.png][image_20200307075408.png]

**ie8、ie9 获取 input 文件大小代码（需要开启上面的配置）如下：**

<!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>ie8、9 file size</title>
    </head>
    <body>
    	<input id="file" type="file" onchange="getFileSize(this);">
    	<script>
    		//获取 ie8、ie9 input 文件大小
    		function getFileSize(obj) {
    			try {
    				var file = obj;
    				file.select();
    				file.blur();
    				var path = document.selection.createRange().text;
    				var fso = new ActiveXObject("Scripting.FileSystemObject");
    				fileSize = fso.GetFile(path).size;
    				alert(fileSize);//弹出文件大小
    			} catch (e) {
    				console.log(e);
    			}
    		}
    	</script>
    </body>
    </html>

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