var Array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; var Tree = createTree(Array); console.log(Tree); // 構(gòu)造一個節(jié)點 function Node(nodeData, leftData, rightData) {   this.nodeData = nodeData;   this.leftData = leftData;   this.rightData = rightData; } // 每次取中點作為根節(jié)點,向左和向右遞歸 function createTree(array) {   if (array.length <= 0) {     return null;   } else {     var mid = parseInt(array.length / 2);     var node = new Node(array[mid], null, null);     var leftArray = array.slice(0 , mid);     var rightArray = array.slice(mid + 1 , array.length );     node.leftData = createTree(leftArray);     node.rightData = createTree(rightArray);     return node;   } }