将Table 用JS导出成Excel

function exportTablebyid(tableid) {
	tableToExcel(tableid);
}

/** 将div里面的table 导出成excel * */
var tableToExcel = (function() {
	var uri = 'data:application/vnd.ms-excel;base64,';
	var template = '
 
 
  {table}
 ';
	var base64 = function(s) {
		return window.btoa(unescape(encodeURIComponent(s)))
	};
	var format = function(s, c) {
		return s.replace(/{(\w+)}/g, function(m, p) {
			return c[p];
		})
	};
	return function(table, name) {
		if (!table.nodeType)
			table = document.getElementById(table)
			table.style='border="1" style="border-color: black;"';
		var ctx = {
			worksheet : name || 'Worksheet',
			table : table.innerHTML
		}
		window.location.href = uri + base64(format(template, ctx))
	}
})()