謝欣妤JavaScript物件object繪圖canvas繪製選擇權到期日損益
canvas繪圖套件繪製選擇權到期日損益圖
謝欣妤w3schools物件object亂數random進位ceil捨去floor
339 340 341 參考印度開發人員 JS程式碼 let canvas = document.getElementById("tetris"); let scoreboard = document.getElementById("score"); let ctx = canvas.getContext("2d"); ctx.scale(30,30); const FOUR = [ //設定 [[0,1,0,0],[0,1,0,0],[0,1,0,0],[0,1,0,0]],//I紅 [[0,1,0], [0,1,0], [1,1,0]], //J橘 [[0,1,0], [0,1,0], [0,1,1]], //L黃 [[1,1,0], [0,1,1], [0,0,0]], //Z綠 [[0,1,1], [1,1,0], [0,0,0]], //S藍 [[1,1,1], [0,1,0], [0,0,0]], //T靛 [[1,1], [1,1],]]; //M紫,正方形,以上共7個 const COLORS = [ "lightgray","red","orange","yellow","darkgreen","blue","indigo","purple"]; const ROWS = 20; //列數ROWS const COLS = 10; //欄數COLumnS let grid = generateGrid(); //呼叫函數產生20x10格子 let fallingPieceObj = null; let score = 0; setInterva...
1225canvas.來不及去W3schools拷貝嗎？https://the-most-little-black.blogspot.com/2023/12/javascriptobjectcanvas.html
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