李珮瑄 CANVAS繪圖

選擇權到期日損益

function MY(){ const canvas = document.getElementById("Canvas210"); const BuyPut = canvas.getContext("2d"); BuyPut.beginPath(); BuyPut.moveTo(0,0); BuyPut.lineTo(200,200); BuyPut.lineTo(400,200); BuyPut.strokeStyle = "black"; BuyPut.lineWidth = 2; BuyPut.font = "24px 標楷體"; BuyPut.fillText("買入賣權Put,認售權證",200,50); BuyPut.stroke(); const SellPut = canvas.getContext("2d"); SellPut.beginPath(); SellPut.moveTo(0,500); SellPut.lineTo(200,300); SellPut.lineTo(400,300); SellPut.strokeStyle = "black"; SellPut.lineWidth = 2; SellPut.fillText("賣出賣權Put,認售權證",200,450); SellPut.stroke(); const BuyCall = canvas.getContext("2d"); BuyCall.beginPath(); BuyCall.moveTo(500,200); BuyCall.lineTo(700,200); BuyCall.lineTo(900,0); BuyCall.strokeStyle = "black"; BuyCall.lineWidth = 2; BuyCall.fillText("買入買權Call,認購權證",500,50); BuyCall.stroke(); const SellCall = canvas.getContext("2d"); SellCall.beginPath(); SellCall.moveTo(500,300); SellCall.lineTo(700,300); SellCall.lineTo(900,500); SellCall.strokeStyle = "black"; SellCall.lineWidth = 2; SellCall.fillText("賣出買權Call,認購權證",500,450); SellCall.stroke(); }