Javascript 我可以使用参数定义字段名吗

下面的JavaScript代码可以工作，但是是否有一种更简洁的方法可以使用n参数将其写入“eval”y1轴、y2轴、y3轴字段名

  switch (n) {
    case 1:
      markingsY = [
             { color: colorErr, y1axis: { from: maxVal } },
             { color: colorErr, y1axis: { to: minVal } },
             { color: "#00f", lineWidth: 1, y1axis: { from: minVal, to: minVal } },
             { color: "#00f", lineWidth: 1, y1axis: { from: maxVal, to: maxVal } }
          ];
    break;

    case 2:
      markingsY = [
             { color: colorErr, y2axis: { from: maxVal } },
             { color: colorErr, y2axis: { to: minVal } },
             { color: "#00f", lineWidth: 1, y2axis: { from: minVal, to: minVal } },
             { color: "#00f", lineWidth: 1, y2axis: { from: maxVal, to: maxVal } }
          ];
    break;

    case 3:
      markingsY = [
             { color: colorErr, y3axis: { from: maxVal } },
             { color: colorErr, y3axis: { to: minVal } },
             { color: "#00f", lineWidth: 1, y3axis: { from: minVal, to: minVal } },
             { color: "#00f", lineWidth: 1, y3axis: { from: maxVal, to: maxVal } }
          ];
    break;

    default:
    break;


  }

---

编辑：误读了问题，对不起

您可以使用静态键而不是需要更改的键，然后动态更改它，以便：

markingsY = [
    { color: colorErr, yaxis: { from: maxVal } },
    { color: colorErr, yaxis: { to: minVal } },
    { color: "#00f", lineWidth: 1, yaxis: { from: minVal, to: minVal } },
    { color: "#00f", lineWidth: 1, yaxis: { from: maxVal, to: maxVal } }
];
markingsY.forEach(function(item){
    item["y"+n+"axis"]=item.yaxis;//copy it to its new key
    delete item.yaxis;//remove the old one
});

尝试：

然后可以更换开关（n）：

collections[n]

---

预期的输入和输出是什么？输入：n-整数，输出标记Y，数组，字段名与n，y1axis，y2axis，Y3axis相关。对于某些事情，flot使用

yaxis

而不是

y1axis

，可能两者都可以工作。顺便说一句：我已经做了你在前面的问题中提出的问题。我可以用-var lookup={1:[y1axis]，2:[y2axis]，3:[y3axis]，}；markingsY=[{color:colorr，lookup[n]：{from:maxVal}}，{color:colorr，lookup[n]：{to:minVal}，{color:#00f]，线宽：1，lookup[n]：{from:minVal，to:minVal}，{color:#00f），线宽：1，lookup[n]：{from:maxVal，to:maxVal}；我似乎误读了你们的问题，对不起，我把我的答案编辑成了你们想要的，我想。

collections = [ 
    [{color:#0000000, y0axis:{form:1234}}], 
    [{color:#0000000, y1axis:{form:1234}}] 
.....];

collections[n]