HTML自定义对象练习
<!--js文件 数组工具对象-->// JavaScript Documentfunction arraytool(){}var ArrayTool = new arraytool();ArrayTool.getMax = function(arr){var max = 0;for(var i = 1; i < arr.length; i++){if(arr[i] > arr[max])max = i;}return arr[max];}ArrayTool.getMin = function(arr){var min = arr[0];for(var i = 1; i < arr.length; i++){if(arr[i] < min)min = arr[i];}return min;}ArrayTool.binarySearch = function(arr, key){var max, min, mid;min = 0;max = arr.length - 1;while(min <= max){mid = (min + max) >> 1;if(key > arr[mid])min = mid + 1;else if(key < arr[mid])max = mid - 1;elsereturn mid;}return -1;}/*ArrayTool.getMax = getMax;function getMax(arr){var max = 0;for(var i = 1; i < arr.length; i++){if(arr[i] > arr[max])max = i;}return arr[max];}ArrayTool.binarySearch = binarySearch;function binarySearch(arr, key){var max, min, mid;min = 0;max = arr.length - 1;while(min <= max){mid = (min + max) >> 1;if(key > arr[mid])min = mid + 1;else if(key < arr[mid])max = mid - 1;elsereturn mid;}return -1;}*/<!--jsobject.html文件--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title></head><body><script type="text/javascript" src="arraytool.js"></script><script type="text/javascript">var arr = [1, 3, 5, 6, 9, 12];var max = ArrayTool.getMax(arr);var min = ArrayTool.getMin(arr);var index = ArrayTool.binarySearch(arr, 12);alert("max = " + max);alert("min = " + min);alert("index = " + index);/*var arr = [1, 3, 5, 6, 9, 12];alert("max = " + getMax(arr));var index = binarySearch(arr, 5);alert("index = " + index);*/</script></body></html>