原生js实现将图片内容复制到剪贴板

 

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核心代码

/*复制图片*/
copyImg(dom) {
    /* 警告：dom不能是img标签，建议用DIV标签包裹img标签，否者会报错！不支持复制背景图！ */
    dom.style.userSelect = 'auto';
    let selection = getSelection(), range = document.createRange();
    selection.removeAllRanges(), range.selectNodeContents(dom), selection.addRange
(range), document.execCommand('copy'), selection.removeAllRanges();
},

用例

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扩展用法（自定义复制成功提示文本+弹窗方式）

/*复制图片*/
copyImg(dom, isAlert, successMsg = '') {
    /* 警告：dom不能是img标签，建议用DIV标签包裹img标签，否者会报错！不支持复制背景图！ */
    dom.style.userSelect = 'auto';
    let selection = getSelection(), range = document.createRange();
    selection.removeAllRanges(), range.selectNodeContents(dom), selection.addRange
        (range), document.execCommand('copy'), selection.removeAllRanges();
    if (isAlert) {
        if (typeof isAlert === "function") {
            isAlert(successMsg || "图片复制成功");
        } else {
            Message.success(successMsg || "图片复制成功");
        }
    }
},