小编far*_*had的帖子

我新学习了node.js,我想使用json2csv节点模块将JSON对象解析为CSV文件.json2csv仅支持平面结构,其中字段是json根的直接子节点.我找到了如何解析-json-object-to-csv-file-using-json2csv-nodejs-module主题并更改了json2csv的createColumnContent函数来读取我的json文件的对象elemet.但我的json文件有数组元素,如下所示:

[
{
    "firstName": "John",
    "lastName": "Smith",
    "age": 25,
    "address": {
        "streetAddress": "21 2nd Street",
        "city": "New York",
        "state": "NY",
        "postalCode": "10021"
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "212 555-1234"
        },
        {
            "type": "fax",
            "number": "646 555-4567"
        }
    ]
},
{
    "firstName": "John",
    "lastName": "Smith",
    "age": 25,
    "address": {
        "streetAddress": "21 2nd Street",
        "city": "New York",
        "state": "NY",
        "postalCode": "10021"
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "212 555-1234"
        },
        {
            "type": "fax",
            "number": "646 555-4567"
        } …

我是d3.js的初学者,我想添加一些文本和矩形内部矩形.

这是我的代码:

            if (!_svg) {
            _svg = d3.select("#col1").append("svg")
                    .attr("height", _height - 2)
                    .attr("width", _width - 2);
        }

        _svg.append("text").attr({
            id: "leftDomainName",
            x: d3.select("svg").attr("width") / 14,
            y: d3.select("svg").attr("height") / 2,
            class: "vertical-text"
        }).text("Business Development");

        var g = _svg.append("g").attr("transform", function (d, i) {
            return "translate(0,0)";
        }).attr("clip-path", "url(#body-clip)");


        var mainBox = g.append("rect").attr({
            id: "mainBox",
            x: d3.select("svg").attr("width") / 8,
            y: 3,
            width: _width - 60,
            height: _height / 3,
            fill: "#D7FFEC"
        });

        mainBox.append("text").text("sample!!!");
        mainBox.append("rect").attr({
            x: 50,
            y: 50,
            width: _width - 60,
            height: _height / …

如何在Android中获取元素ID

<EditText
   android:id="@+id/etCustomerNo"

我需要在活动中访问editText的ID（例如，将“ etCustomerNo”获取为字符串）。谢谢。

我需要知道布局上所有editText的ID

for (int i = 0; i < rl.getChildCount(); i++) {
    if (rl.getChildAt(i) instanceof EditText) {
        String id = String.valueOf(rl.getChildAt(i).getId());
    }
}

getId()返回一个int值而不是"etCustomerNo"