兼容各个版本浏览器粘贴函数
// 前端拷贝函数webCopy = function(value){if(window.clipboardData && window.clipboardData.setData){return window.clipboardData.setData("Text", value)}else if(document.queryCommandSupported && document.queryCommandSupported("copy")){let ele = document.createElement("input");ele.value = value;document.body.appendChild(ele);ele.select();document.execCommand("copy");document.body.removeChild(ele);}}