var markers = [{ id: 0, latitude: 30.56249, longitude: 114.34042, iconPath: (), width: 32,height: 32, title: '无',callout: { content: '标记0' },clickable: true }, { id: 3, latitude: 30.572245, longitude: 114.351136, iconPath: (), width: 32,height: 32, title: '3',callout: { content: '标记3' },clickable: true }, { id: 20, branch: 9, latitude: 30.570861, longitude: 114.350871, iconPath: (), width: 32,height: 32, title: '20',callout: { content: '标记20' },clickable: true, weight: 0 },]; uniapp中，如何做到为以上代码中的id：20中的 iconPath: ()传值

要为以上代码中的id:20中的iconPath属性传值，只需要在给iconPath属性赋值时，将图片的路径传入即可。例如，可以将iconPath属性的值改为"../../static/images/icon.png"，如下所示：

var markers = [
  { 
    id: 0, 
    latitude: 30.56249, 
    longitude: 114.34042, 
    iconPath: "../../static/images/icon.png", // 修改iconPath的值
    width: 32,
    height: 32, 
    title: '无',
    callout: { content: '标记0' },
    clickable: true 
  }, 
  { 
    id: 3, 
    latitude: 30.572245, 
    longitude: 114.351136, 
    iconPath: "../../static/images/icon.png", // 修改iconPath的值
    width: 32,
    height: 32, 
    title: '3',
    callout: { content: '标记3' },
    clickable: true 
  }, 
  { 
    id: 20, 
    branch: 9, 
    latitude: 30.570861, 
    longitude: 114.350871, 
    iconPath: "../../static/images/icon.png", // 修改iconPath的值
    width: 32,
    height: 32, 
    title: '20',
    callout: { content: '标记20' },
    clickable: true, 
    weight: 0 
  },
];

在这里，我们将icon图片的路径设置为"../../static/images/icon.png"，也可以根据实际情况修改为其他路径。这样做后，id为20的标记就会使用该路径下的图片作为标记图标。