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Update index.js #726

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12 changes: 6 additions & 6 deletions pages/treemap/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,15 +9,15 @@ function initChart(canvas, width, height, dpr) {
devicePixelRatio: dpr // new
});
canvas.setChart(chart);
var data = [];
const data = [];

for (var i = 0; i <= 360; i++) {
var t = i / 180 * Math.PI;
var r = Math.sin(2 * t) * Math.cos(2 * t);
for (const i = 0; i <= 360; i++) {
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@Ovilia Ovilia Jun 23, 2022

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循环里面怎么会是 const？

const t = i / 180 * Math.PI;
const r = Math.sin(2 * t) * Math.cos(2 * t);
data.push([r, i]);
}

var option = {
const option = {
title: {
text: '2014年中国耕地质量',
left: 'center',
Expand Down Expand Up @@ -180,4 +180,4 @@ Page({
},

onReady() { }
});
});