有人知道，vue怎么导出excel表格么

参考代码：
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var fromCharCode = String.fromCharCode;
var INVALID_CHARACTER_ERR = (function () {
"use strict";
// fabricate a suitable error object
try {
document.createElement('$');
} catch (error) {
return error;
}
}());

// encoder
if (!window.btoa) {
window.btoa = function (string) {
"use strict";
var a, b, b1, b2, b3, b4, c, i = 0, len = string.length, max = Math.max, result = '';

while (i < len) {
a = string.charCodeAt(i++) || 0;
b = string.charCodeAt(i++) || 0;
c = string.charCodeAt(i++) || 0;

if (max(a, b, c) > 0xFF) {
throw INVALID_CHARACTER_ERR;
}

b1 = (a >> 2) & 0x3F;
b2 = ((a & 0x3) << 4) | ((b >> 4) & 0xF);
b3 = ((b & 0xF) << 2) | ((c >> 6) & 0x3);
b4 = c & 0x3F;

if (!b) {
b3 = b4 = 64;
} else if (!c) {
b4 = 64;
}
result += characters.charAt(b1) + characters.charAt(b2) + characters.charAt(b3) + characters.charAt(b4);
}
return result;
};
}

// decoder
if (!window.atob) {
window.atob = function(string) {
"use strict";
string = string.replace(new RegExp("=+$"), '');
var a, b, b1, b2, b3, b4, c, i = 0, len = string.length, chars = [];

if (len % 4 === 1) {
throw INVALID_CHARACTER_ERR;
}

while (i < len) {
b1 = characters.indexOf(string.charAt(i++));
b2 = characters.indexOf(string.charAt(i++));
b3 = characters.indexOf(string.charAt(i++));
b4 = characters.indexOf(string.charAt(i++));

a = ((b1 & 0x3F) << 2) | ((b2 >> 4) & 0x3);
b = ((b2 & 0xF) << 4) | ((b3 >> 2) & 0xF);
c = ((b3 & 0x3) << 6) | (b4 & 0x3F);

chars.push(fromCharCode(a));
b && chars.push(fromCharCode(b));
c && chars.push(fromCharCode(c));
}
return chars.join('');
};
}

ExcellentExport = (function() {
"use strict";
var version = "1.3";
var csvSeparator = ',';
var uri = {excel: 'data:application/vnd.ms-excel;base64,', csv: 'data:application/csv;base64,'};
var template = {excel: 'http://www.w3.org/TR/REC-html40">{table}'};
var csvDelimiter = ",";
var csvNewLine = "\r\n";
var base64 = function(s) {
return window.btoa(window.unescape(encodeURIComponent(s)));
};
var format = function(s, c) {
return s.replace(new RegExp("{(\\w+)}", "g"), function(m, p) {
return c[p];
});
};

var get = function(element) {
if (!element.nodeType) {
return document.getElementById(element);
}
return element;
};

var fixCSVField = function(value) {
var fixedValue = value;
var addQuotes = (value.indexOf(csvDelimiter) !== -1) || (value.indexOf('\r') !== -1) || (value.indexOf('\n') !== -1);
var replaceDoubleQuotes = (value.indexOf('"') !== -1);

if (replaceDoubleQuotes) {
fixedValue = fixedValue.replace(/"/g, '""');
}
if (addQuotes || replaceDoubleQuotes) {
fixedValue = '"' + fixedValue + '"';
}
return fixedValue;
};

var tableToCSV = function(table) {
var data = "";
var i, j, row, col;
for (i = 0; i < table.rows.length; i++) {
row = table.rows[i];
for (j = 0; j < row.cells.length; j++) {
col = row.cells[j];
data = data + (j ? csvDelimiter : '') + fixCSVField(col.textContent.trim());
}
data = data + csvNewLine;
}
return data;
};

var ee = {

excel: function(anchor, table, name) {
table = get(table);
var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML};
var hrefvalue = uri.excel + base64(format(template.excel, ctx));
anchor.href = hrefvalue;
// Return true to allow the link to work
return true;
},

csv: function(anchor, table, delimiter, newLine) {
if (delimiter !== undefined && delimiter) {
csvDelimiter = delimiter;
}
if (newLine !== undefined && newLine) {
csvNewLine = newLine;
}
table = get(table);
var csvData = tableToCSV(table);
var hrefvalue = uri.csv + base64(csvData);
anchor.href = hrefvalue;
return true;
}
};

return ee;
}());