//

function main() {
    if (exchanges.length == 0 || exchanges.length % 2 !== 0) {
        throw "交易所参数必须是2的整数";
    }
    var cfg = {
        __isStock: true,
        tooltip: {
            xDateFormat: '%Y-%m-%d %H:%M:%S, %A'
        },
        title: {