展開 var ctx = document.getElementById("stage").getContext("2d"); ctx.canvas.width = 7; ctx.canvas.height = 2; var linechart = new Chart(ctx, { type: "line", data: { labels: [ "1F", "2F", "3F", "4F", "5F", "6F", "7F", "8F", "9F", "10F", "1…