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AIRIOT智慧系统搭建平台经验交流

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  3. 代码非空判断怎么快速解决

代码非空判断怎么快速解决

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #1

    3f479ee8-c48c-460d-9836-622d21ee56cc-image.png 老师 这个问题在代码里加了?号还是出现这个问题

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    0
  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by
    #2

    截图看一下你的代码处理的地方

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    0
  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #3

    image.png

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by
    #4

    你更新一下echarts模块最新版

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #5

    image.png 更新了还是有警告

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by 核桃酥
    #6

    加载状态这里绑定数据源的内容 如图87bf908b-7db0-4157-8669-6c1dedda5d6e-image.png image.png

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #7

    图表数据是从画面变量传过来的@核桃酥

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by 核桃酥
    #8

    你的图表数据绑定的是画面变量?9009e15c-d4a9-4fde-b203-59c7d094c48d-image.png

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #9

    image.png是的是的

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #10

    写了一个自定义函数来获取数据,传到画面变量,然后绑定到图表里

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by
    #11

    那你如果绑定的是画面变量,你可以看一下控制台具体的报错信息

    A 1 Reply Last reply
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  • A Offline
    A Offline
    admin123
    replied to 核桃酥 on last edited by
    #12

    @核桃酥 在 代码非空判断怎么快速解决 中说:

    那你如果绑定的是画面变量,你可以看一下控制台具体的报错信息

    effd7513-4da0-4b14-8b2f-b0b4d85e57d6-image.png 您可以帮忙看下如何解决吗 刚开始没获取到数据 所以报错的

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by 核桃酥
    #13

    报错就是你0前面没非空判断
    image.png

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #14

    image.png现在加了也报

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by
    #15

    你可以通过ai 对你的代码进行处理,目前的报错就是你的代码写的不对,可以参考下图的方式,判断之后吧你的代码写在dataset非空判断后的里面image.png

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #16

    整不出来啊 老师 有空能给看下吗@核桃酥

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by
    #17

    if (dataset && Array.isArray(dataset) && dataset.length >= 2) {
    你的代码

    }

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  • A Offline
    A Offline
    admin123
    wrote on last edited by
    #18

    老师 这样试了 还是不行

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  • 核 Offline
    核 Offline
    核桃酥
    wrote on last edited by 核桃酥
    #19

    你的dataset打印出来是什么样子 有外网地址吗?可以放一下我看一下

    A 1 Reply Last reply
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  • A Offline
    A Offline
    admin123
    replied to 核桃酥 on last edited by
    #20

    @核桃酥 在 代码非空判断怎么快速解决 中说:

    你的dataset打印出来是什么样子 有外网地址吗?可以放一下我看一下

    可以的 我私发给您 我们这个系统还有点小问题啊 一并给您说了

    1 Reply Last reply
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