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function newToFixed(num,digit) {//digit:保留小数位 let str = ""; //字符串累加 str = (accMul(num,Math.pow(10, digit))).toString(); if (str.indexOf('.') == -1) { str += "."; for (var i = 1; i <= digit; i++) {

var xhr = new XMLHttpRequest();xhr.open('POST', '/FileManage/File/DownloadFile', true);xhr.responseType = "blob";var data = new FormData();data.append('keyValue', keyValue);xhr.onload = function () { var filename; let contentDisposition = xhr.