---

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

<template><div><div ref="img"><imgsrc="https://gips2.baidu.com/it/u=1070828945,3304149431&fm=3028&app=3028&f=PNG&fmt=auto&q=75&size=f150_150"></div><el-input v-model.trim="inputValue" placeholder="请输入内容" clearable /><el-button type="primary" @click="copyImg($refs.img)">复制图片</el-button></div>
</template><script>
export default {data() { return { inputValue: '', } },methods: {/*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();},}
};
</script> 

---

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");}}
},