浏览器中复制文本 点击改变文章字体大小

/** * 浏览器中复制文本 * 创建一个不可见的输入框，并将文本赋值 * 若浏览器不绘制dom，则选取无法建立 * @param {Object} text */ function copy(text) { const id = 'copy-hide-dom'; let elem = document.getElementById(id); if (!elem) { elem = document.createElement('input'); elem.style.height = '0px'; elem.style.outline = '0px'; elem.style.borderWidth = '0px'; elem.style.padding = '0 0'; elem.style.margin = '0 0'; elem.style.position = 'fixed'; document.body.appendChild(elem); } elem.value = text; elem.select(); elem.setSelectionRange(0, elem.value.length); document.execCommand('copy'); }