2020-07-04

简单的代码（递归）

function arrToStr(objarr) {
    var arrLen = objarr.length;
    var row = "[";
    for (var i = 0; i < arrLen; i++) {
        if (objarr[i] instanceof Array) {
            row += arrToStr(objarr[i]) + ",";
        } else if (typeof objarr[i] == "object") {
            row += JSON.stringify(objarr[i]) + ",";
        } else {
            row += objarr[i].toString() + ",";
        }
    }
    row += "]";
    return row;
}