修正内存泄漏,提供增量加载.

dist/createBoard.js

@@ -65,8 +65,8 @@ function getVec(data) {
 exports.getVec = getVec;
 //创建板件 暂时这么写
 function createBoard(boardData) {
-    var pts = new Array();
-    var buls = new Array();
+    var pts = [];
+    var buls = [];
     var boardPts = boardData["Pts"];
     var boardBuls = boardData["Buls"];
     var boardHeight = boardData["H"];