h = i % * hCount;
v = Math.floor(i / hCount);
hCount是一行有多少个。整个for循环次数是 行数 * 列数 ,假如3行4列:
var hCount = 3; var vCount = 4; var len = hCount * vCount; for(var i = 0; i < len; i++){ h = i % hCount; v = Math.floor(i / hCount); }