1、安装依赖 npm install --save xlsx file-saver
页面
<template>
<div>
<div class="table-tool">
<Row>
<Col :span="24">
<div class="right-tool">
<Tooltip content="导出EXCEL" placement="top" transfer>
<div class="custom-btn" @click="confirmExport">
<div class="rippleAnimate">
<common-icon type="_icon_table_export" :size="18" />
</div>
</div>
</Tooltip>
</div>
</Col>
</Row>
</div>
<Table ref="table" :columns="columns" :data="tableData2" :height="200"></Table>
</div>
</template>
<script>
import { exportToExcel } from "@/libs/tools";
import lodash from "lodash";
export default {
name: "tqOutagePeriod",
data() {
return {
columns: [
{
title: "供电单位",
key: "countyNoName",
width: 100,
align: "center",
},
{
title: "供电所",
key: "stationNoName",
width: 100,
align: "center",
},
{
title: "线路编号",
key: "xlbh",
width: 100,
align: "center",
},
{
title: "线路名称",
key: "xlbhname",
width: 100,
align: "center",
},
{
title: "台区名称",
key: "tgName",
width: 100,
align: "center",
},
{
title: "台区编号",
key: "tgNo",
width: 100,
align: "center",
},
{
title: "是否煤改电台区",
key: "mgd",
width: 140,
align: "center",
},
{
title: "2023年2月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[0])]);
},
key: "a",
width: 100,
align: "center",
children: [
{
title: "上",
key: "a1",
width: 100,
align: "center",
},
{
title: "下",
key: "a2",
width: 100,
align: "center",
},
],
},
{
title: "2023年3月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[1])]);
},
key: "b",
width: 100,
align: "center",
children: [
{
title: "上",
key: "b1",
width: 100,
align: "center",
},
{
title: "下",
key: "b2",
width: 100,
align: "center",
},
],
},
{
title: "2023年4月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[2])]);
},
key: "c",
width: 100,
align: "center",
children: [
{
title: "上",
key: "c1",
width: 100,
align: "center",
},
{
title: "下",
key: "c2",
width: 100,
align: "center",
},
],
},
{
title: "2023年5月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[3])]);
},
key: "d",
width: 100,
align: "center",
children: [
{
title: "上",
key: "d1",
width: 100,
align: "center",
},
{
title: "下",
key: "d2",
width: 100,
align: "center",
},
],
},
{
title: "2023年6月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[4])]);
},
key: "e",
width: 100,
align: "center",
children: [
{
title: "上",
key: "e1",
width: 100,
align: "center",
},
{
title: "下",
key: "e2",
width: 100,
align: "center",
},
],
},
{
title: "2023年7月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[5])]);
},
key: "f",
width: 100,
align: "center",
children: [
{
title: "上",
key: "f1",
width: 100,
align: "center",
},
{
title: "下",
key: "f2",
width: 100,
align: "center",
},
],
},
{
title: "2023年8月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[6])]);
},
key: "g",
width: 100,
align: "center",
children: [
{
title: "上",
key: "g1",
width: 100,
align: "center",
},
{
title: "下",
key: "g2",
width: 100,
align: "center",
},
],
},
{
title: "2023年9月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[7])]);
},
key: "h",
width: 100,
align: "center",
children: [
{
title: "上",
key: "h1",
width: 100,
align: "center",
},
{
title: "下",
key: "h2",
width: 100,
align: "center",
},
],
},
{
title: "2023年10月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[8])]);
},
key: "i",
width: 100,
align: "center",
children: [
{
title: "上",
key: "i1",
width: 100,
align: "center",
},
{
title: "下",
key: "i2",
width: 100,
align: "center",
},
],
},
{
title: "2023年11月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[9])]);
},
key: "j",
width: 100,
align: "center",
children: [
{
title: "上",
key: "j1",
width: 100,
align: "center",
},
{
title: "下",
key: "j2",
width: 100,
align: "center",
},
],
},
{
title: "2023年12月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[10])]);
},
key: "k",
width: 100,
align: "center",
children: [
{
title: "上",
key: "k1",
width: 100,
align: "center",
},
{
title: "下",
key: "k2",
width: 100,
align: "center",
},
],
},
{
title: "2024年1月停电次数",
renderHeader: (h, params) => {
return h("div", [h("span", {}, ""), h("span", this.columnsTitle[11])]);
},
key: "l",
width: 100,
align: "center",
children: [
{
title: "上",
key: "l1",
width: 100,
align: "center",
},
{
title: "下",
key: "l2",
width: 100,
align: "center",
},
],
},
{
title: "近一个月停电次数",
key: "ygy",
width: 140,
align: "center",
},
{
title: "近两个月停电次数",
key: "lgy",
width: 140,
align: "center",
},
{
title: "一个季度停电次数",
key: "yhj",
width: 140,
align: "center",
},
{
title: "半年停电次数",
key: "bn",
width: 120,
align: "center",
},
{
title: "全年停电次数",
key: "qn",
width: 120,
align: "center",
},
],
tableData2: [
{
countyNoName: "承德市",
stationNoName: "供电所",
xlbh: "111",
xlbhname: "22222",
tgName: "一二三",
tgNo: "123",
mgd: "否",
a1: "上a1",
a2: "下a1",
b1: "上b1",
b2: "下b1",
c1: "上c1",
c2: "下c1",
d1: "上d1",
d2: "下d1",
e1: "上e1",
e2: "下e1",
f1: "上f1",
f2: "下f1",
g1: "上g1",
g2: "下g1",
h1: "上h1",
h2: "下h1",
i1: "上i1",
i2: "下i1",
j1: "上j1",
j2: "下j1",
k1: "上k1",
k2: "下k1",
l1: "上l1",
l2: "下l1",
ygy: "1",
lgy: "2",
yhj: "3",
bn: "4",
qn: "5",
},
],
columnsTitle: [
"2023年2月停电次数",
"2023年3月停电次数",
"2023年4月停电次数",
"2023年5月停电次数",
"2023年6月停电次数",
"2023年7月停电次数",
"2023年8月停电次数",
"2023年9月停电次数",
"2023年10月停电次数",
"2023年11月停电次数",
"2023年12月停电次数",
"2024年1月停电次数",
],
};
},
watch: {},
computed: {},
mounted() {},
methods: {
confirmExport: lodash.debounce(function () {
const columnsTitle2 = [
"2024年2月停电次数",
"2024年3月停电次数",
"2024年4月停电次数",
"2024年5月停电次数",
"2024年6月停电次数",
"2024年7月停电次数",
"2024年8月停电次数",
"2024年9月停电次数",
"2024年10月停电次数",
"2024年11月停电次数",
"2024年12月停电次数",
"2025年1月停电次数",
];
const columns = this.columns.map((item, index) => {
item.title = lodash.isEmpty(item.children) ? item.title : columnsTitle2[index - 7];
return item;
});
exportToExcel(this.tableData2, columns, "长周期停电明细", "2");
}, 3000),
},
components: {},
};
</script>
<style scoped lang="less">
.right-tool {
float: right;
height: 30px;
overflow: hidden;
.custom-btn {
display: inline-block;
width: 30px;
height: 30px;
border-radius: 50%;
overflow: hidden;
text-align: center;
cursor: pointer;
padding: 6px 0;
position: relative;
i {
color: #888;
line-height: 1;
}
}
.custom-btn:hover {
i {
color: #333;
}
}
}
</style>
tools.js 导出方法
import { export_json_to_excel } from "./ExportExcel.js";
// 行转列
function formatJson(filterVal, jsonData) {
return jsonData.map(v =>
filterVal.map(j => {
return v[j]
})
)
}
let CURRENT_CELL_INDEX = 0
// https://segmentfault.com/q/1010000023268006?utm_source=tag-newest
//转换数字到EXCEL单元格编号
function numberToCellCode(number) {
let s = ''
while (number > 0) {
let m = number % 26
if (m === 0) m = 26
s = String.fromCharCode(m + 64) + s
number = (number - m) / 26
}
return s
}
// 获取跨列
function getColspan(column) {
var colspan = 0
var children = column.children || []
for (var i = 0; i < children.length; i++) {
var item = children[i]
if (item.children && item.children.length > 0) {
colspan += getColspan(item)
} else {
colspan += 1
}
}
if (colspan == 0) {
colspan = 1
}
return colspan
}
// 获取跨列
function getRowspan(column, maxLevel) {
let rowspan = 1
if (!column.children || column.children.length == 0) {
rowspan = maxLevel - column.level + 1
}
return rowspan
}
// 获取最大层级
function setCellCode(columns, parentNode) {
const levels = []
columns.forEach((li, index) => {
if (!CURRENT_CELL_INDEX) {
CURRENT_CELL_INDEX = 1
} else {
CURRENT_CELL_INDEX++
}
if (parentNode && index == 0) {
CURRENT_CELL_INDEX = parentNode.CellIndex
}
li.CellIndex = CURRENT_CELL_INDEX
li.CellCode = numberToCellCode(CURRENT_CELL_INDEX)
const children = li.children
if (children && children.length > 0) {
setCellCode(children, li)
}
})
return levels
}
// 获取最大层级
function getLevels(columns, parentNode) {
const levels = []
columns.forEach((li, index) => {
li.level = parentNode ? parentNode.level + 1 : 0
levels.push(li.level)
const children = li.children
if (children && children.length > 0) {
const result = getLevels(children, li)
levels.push(...result)
}
})
return levels
}
// 设置合并
function setMerges(columns = [], maxLevel, multiHeader = [], merges = []) {
columns.forEach((li, index) => {
const level = li.level + 1
const cellIndex = li.CellIndex - 1
const CellCode = li.CellCode
const cellTitle = li.title
const colSpan = getColspan(li)
const rowSpan = getRowspan(li, maxLevel)
li.colSpan = colSpan
li.rowSpan = rowSpan
if (!multiHeader[level - 1]) {
multiHeader[level - 1] = []
}
if (rowSpan > 1) {
merges.push(`${CellCode}${level}:${CellCode}${level + rowSpan - 1}`)
multiHeader[level - 1][cellIndex] = cellTitle
for (let i = 1; i < rowSpan; i++) {
if (!multiHeader[level - 1 + i]) {
multiHeader[level - 1 + i] = []
}
multiHeader[level - 1 + i][cellIndex] = ''
}
} else {
multiHeader[level - 1][cellIndex] = cellTitle
}
if (colSpan > 1) {
let endCellIndex = cellIndex
let emptyCell = []
for (let i = 1; i < colSpan; i++) {
endCellIndex++
emptyCell.push('')
}
const endCellCode = numberToCellCode(endCellIndex + 1)
multiHeader[level - 1].splice(cellIndex + 1, 0, ...emptyCell)
merges.push(`${CellCode}${level}:${endCellCode}${level}`)
}
const children = li.children
if (children && children.length > 0) {
setMerges(children, maxLevel, multiHeader, merges)
}
})
}
// 前端导出动态二级表头Excel文件
export function exportToExcel(tableData, columns, filename, tableheader, customMerges) {
let multiHeader = []
const header = []
const merges = []
CURRENT_CELL_INDEX = 0
setCellCode(columns, null, null)
// console.log(columns, 'setCellCode')
// 最大层级集合
const allLevels = getLevels(columns, null)
// 获取最大层级
const maxLevel = Math.max(...allLevels)
setMerges(columns, maxLevel, multiHeader, merges)
// console.log(merges, 'setMerges')
header.push(...multiHeader[maxLevel])
if (maxLevel > 0) {
multiHeader.splice(maxLevel, 1)
} else {
multiHeader = []
}
// 行转列
const filterVal = []
columns.forEach(row => {
if (row.children && row.children.length > 0) {
row.children.forEach(childrow => {
filterVal.push(childrow.key)
})
} else {
filterVal.push(row.key)
}
})
const data = formatJson(filterVal, tableData)
export_json_to_excel({
multiHeader, // 第二行表头
header, // 第一行表头
merges,
data,
filename,
tableheader,
})
}
ExportExcel.js文件
require('script-loader!file-saver');
require('script-loader!./Blob');
import XLSX from 'xlsx'
function generateArray(table) {
var out = [];
var rows = table.querySelectorAll('tr');
var ranges = [];
for (var R = 0; R < rows.length; ++R) {
var outRow = [];
var row = rows[R];
var columns = row.querySelectorAll('td');
for (var C = 0; C < columns.length; ++C) {
var cell = columns[C];
var colspan = cell.getAttribute('colspan');
var rowspan = cell.getAttribute('rowspan');
var cellValue = cell.innerText;
if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
//Skip ranges
ranges.forEach(function (range) {
if (R >= range.s.r && R <= range.e.r && outRow.length >= range.s.c && outRow.length <= range.e.c) {
for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);
}
});
//Handle Row Span
if (rowspan || colspan) {
rowspan = rowspan || 1;
colspan = colspan || 1;
ranges.push({ s: { r: R, c: outRow.length }, e: { r: R + rowspan - 1, c: outRow.length + colspan - 1 } });
}
;
//Handle Value
outRow.push(cellValue !== "" ? cellValue : null);
//Handle Colspan
if (colspan) for (var k = 0; k < colspan - 1; ++k) outRow.push(null);
}
out.push(outRow);
}
return [out, ranges];
};
function datenum(v, date1904) {
if (date1904) v += 1462;
var epoch = Date.parse(v);
return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}
function sheet_from_array_of_arrays(data, opts) {
var ws = {};
var range = { s: { c: 10000000, r: 10000000 }, e: { c: 0, r: 0 } };
for (var R = 0; R != data.length; ++R) {
for (var C = 0; C != data[R].length; ++C) {
if (range.s.r > R) range.s.r = R;
if (range.s.c > C) range.s.c = C;
if (range.e.r < R) range.e.r = R;
if (range.e.c < C) range.e.c = C;
var cell = { v: data[R][C] };
if (cell.v == null) continue;
var cell_ref = XLSX.utils.encode_cell({ c: C, r: R });
if (typeof cell.v === 'number') cell.t = 'n';
else if (typeof cell.v === 'boolean') cell.t = 'b';
else if (cell.v instanceof Date) {
cell.t = 'n';
cell.z = XLSX.SSF._table[14];
cell.v = datenum(cell.v);
}
else cell.t = 's';
ws[cell_ref] = cell;
}
}
if (range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
return ws;
}
function Workbook() {
if (!(this instanceof Workbook)) return new Workbook();
this.SheetNames = [];
this.Sheets = {};
}
function s2ab(s) {
var buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
export function export_table_to_excel(id) {
var theTable = document.getElementById(id);
var oo = generateArray(theTable);
var ranges = oo[1];
/* original data */
var data = oo[0];
var ws_name = "SheetJS";
var wb = new Workbook(), ws = sheet_from_array_of_arrays(data);
/* add ranges to worksheet */
// ws['!cols'] = ['apple', 'banan'];
ws['!merges'] = ranges;
/* add worksheet to workbook */
wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
var wbout = XLSX.write(wb, { bookType: 'xlsx', bookSST: false, type: 'binary' });
saveAs(new Blob([s2ab(wbout)], { type: "application/octet-stream" }), "test.xlsx")
}
export function export_json_to_excel({
multiHeader2 = [],
multiHeader = [],
header,
data,
filename, //文件名
merges = [], // 合并
autoWidth = true,
bookType = "xlsx",
myRowFont = ["1"],
tableheader = tableheader
} = {}) {
/* original data */
filename = filename || "列表";
data = [...data];
if (header != []) {
data.unshift(header);
}
for (let i = multiHeader2.length - 1; i > -1; i--) {
data.unshift(multiHeader2[i]);
}
for (let i = multiHeader.length - 1; i > -1; i--) {
data.unshift(multiHeader[i]);
}
//
var ws_name = "SheetJS";
var wb = new Workbook(),
ws = sheet_from_array_of_arrays(data);
if (merges.length > 0) {
if (!ws["!merges"]) ws["!merges"] = [];
merges.forEach(item => {
ws["!merges"].push(XLSX.utils.decode_range(item));
});
}
if (autoWidth) {
/*设置worksheet每列的最大宽度*/
const colWidth = data.map(row =>
row.map(val => {
/*先判断是否为null/undefined*/
if (val == null) {
return {
wch: 20
};
} else if (val.toString().charCodeAt(0) > 255) {
/*再判断是否为中文*/
return {
wch: val.toString().length * 2
};
} else {
return {
wch: val.toString().length
};
}
})
);
/*以第一行为初始值*/
let result = colWidth[0];
for (let i = 1; i < colWidth.length; i++) {
for (let j = 0; j < colWidth[i].length; j++) {
if (result[j] != undefined) {
if (result[j]["wch"] < colWidth[i][j]["wch"]) {
result[j]["wch"] = colWidth[i][j]["wch"];
}
}
}
}
ws["!cols"] = result;
}
/* add worksheet to workbook */
wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
var dataInfo = wb.Sheets[wb.SheetNames[0]];
//设置主标题样式
// dataInfo["A1"].s = {
// font: {
// name: '宋体',
// sz: 18,
// color: {rgb: "ff0000"},
// border:true
// },
// alignment: {
// horizontal: "center",
// vertical: "center",
// },
// fill: {
// fgColor: {rgb: "FFFFFF"},
// },
// };
// 这是表头行的样式
var tableTitleFont = {
font: {
name: "宋体",
// color: {rgb: "ff0000"},
bold: true
},
alignment: {
horizontal: "center",
vertical: "center"
}
};
if (tableheader == undefined) {
for (var b in dataInfo) {
if (b.indexOf(myRowFont) > -1) {
if (b.length == 2) {
dataInfo[b].s = tableTitleFont;
}
}
}
}
if (tableheader == "2") {
for (var b in dataInfo) {
if (b.indexOf("1") > -1 || b.indexOf("2") > -1) {
if (b.length == 2) {
dataInfo[b].s = tableTitleFont;
}
}
}
}
var wbout = XLSX.write(wb, {
bookType: bookType,
bookSST: false,
type: "binary"
});
saveAs(
new Blob([s2ab(wbout)], {
type: "application/octet-stream"
}),
`${filename}.${bookType}`
);
}
Blob.js
/* eslint-disable */
/* Blob.js
* A Blob implementation.
* 2014-05-27
*
* By Eli Grey, http://eligrey.com
* By Devin Samarin, https://github.com/eboyjr
* License: X11/MIT
* See LICENSE.md
*/
/*global self, unescape */
/*jslint bitwise: true, regexp: true, confusion: true, es5: true, vars: true, white: true,
plusplus: true */
/*! @source http://purl.eligrey.com/github/Blob.js/blob/master/Blob.js */
(function (view) {
"use strict";
view.URL = view.URL || view.webkitURL;
if (view.Blob && view.URL) {
try {
new Blob;
return;
} catch (e) {}
}
// Internally we use a BlobBuilder implementation to base Blob off of
// in order to support older browsers that only have BlobBuilder
var BlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || (function(view) {
var
get_class = function(object) {
return Object.prototype.toString.call(object).match(/^[objects(.*)]$/)[1];
}
, FakeBlobBuilder = function BlobBuilder() {
this.data = [];
}
, FakeBlob = function Blob(data, type, encoding) {
this.data = data;
this.size = data.length;
this.type = type;
this.encoding = encoding;
}
, FBB_proto = FakeBlobBuilder.prototype
, FB_proto = FakeBlob.prototype
, FileReaderSync = view.FileReaderSync
, FileException = function(type) {
this.code = this[this.name = type];
}
, file_ex_codes = (
"NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR "
+ "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR"
).split(" ")
, file_ex_code = file_ex_codes.length
, real_URL = view.URL || view.webkitURL || view
, real_create_object_URL = real_URL.createObjectURL
, real_revoke_object_URL = real_URL.revokeObjectURL
, URL = real_URL
, btoa = view.btoa
, atob = view.atob
, ArrayBuffer = view.ArrayBuffer
, Uint8Array = view.Uint8Array
;
FakeBlob.fake = FB_proto.fake = true;
while (file_ex_code--) {
FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;
}
if (!real_URL.createObjectURL) {
URL = view.URL = {};
}
URL.createObjectURL = function(blob) {
var
type = blob.type
, data_URI_header
;
if (type === null) {
type = "application/octet-stream";
}
if (blob instanceof FakeBlob) {
data_URI_header = "data:" + type;
if (blob.encoding === "base64") {
return data_URI_header + ";base64," + blob.data;
} else if (blob.encoding === "URI") {
return data_URI_header + "," + decodeURIComponent(blob.data);
} if (btoa) {
return data_URI_header + ";base64," + btoa(blob.data);
} else {
return data_URI_header + "," + encodeURIComponent(blob.data);
}
} else if (real_create_object_URL) {
return real_create_object_URL.call(real_URL, blob);
}
};
URL.revokeObjectURL = function(object_URL) {
if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) {
real_revoke_object_URL.call(real_URL, object_URL);
}
};
FBB_proto.append = function(data/*, endings*/) {
var bb = this.data;
// decode data to a binary string
if (Uint8Array && (data instanceof ArrayBuffer || data instanceof Uint8Array)) {
var
str = ""
, buf = new Uint8Array(data)
, i = 0
, buf_len = buf.length
;
for (; i < buf_len; i++) {
str += String.fromCharCode(buf[i]);
}
bb.push(str);
} else if (get_class(data) === "Blob" || get_class(data) === "File") {
if (FileReaderSync) {
var fr = new FileReaderSync;
bb.push(fr.readAsBinaryString(data));
} else {
// async FileReader won't work as BlobBuilder is sync
throw new FileException("NOT_READABLE_ERR");
}
} else if (data instanceof FakeBlob) {
if (data.encoding === "base64" && atob) {
bb.push(atob(data.data));
} else if (data.encoding === "URI") {
bb.push(decodeURIComponent(data.data));
} else if (data.encoding === "raw") {
bb.push(data.data);
}
} else {
if (typeof data !== "string") {
data += ""; // convert unsupported types to strings
}
// decode UTF-16 to binary string
bb.push(unescape(encodeURIComponent(data)));
}
};
FBB_proto.getBlob = function(type) {
if (!arguments.length) {
type = null;
}
return new FakeBlob(this.data.join(""), type, "raw");
};
FBB_proto.toString = function() {
return "[object BlobBuilder]";
};
FB_proto.slice = function(start, end, type) {
var args = arguments.length;
if (args < 3) {
type = null;
}
return new FakeBlob(
this.data.slice(start, args > 1 ? end : this.data.length)
, type
, this.encoding
);
};
FB_proto.toString = function() {
return "[object Blob]";
};
FB_proto.close = function() {
this.size = this.data.length = 0;
};
return FakeBlobBuilder;
}(view));
view.Blob = function Blob(blobParts, options) {
var type = options ? (options.type || "") : "";
var builder = new BlobBuilder();
if (blobParts) {
for (var i = 0, len = blobParts.length; i < len; i++) {
builder.append(blobParts[i]);
}
}
return builder.getBlob(type);
};
}(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this.content || this));
参考项目
参考文档