<html><script src="/lib/graphics/plotly.js"></script><body><div id="myPlot" style="width:100%;max-width:700px"></div><script>var exp = "Math.cos(x)";// 生成值var xValues = [];var yValues = [];for (var x = 0; x <= 10; x += 0.2) { yValues.push(eval(exp)); xValues.push(x);}// 使用 Plotly 来显示var data = [{x:xValues, y:yValues, mode:"markers"}];var layout = {title: "y = " + exp};Plotly.newPlot("myPlot", data, layout);</script>