/*var box = new Array();                            //声明一个数组，空数组alert(typeof box);                                    //数组属于object类型var box = new Array('李炎恢', 28, '盐城');    //创建一个数组，并分配了三个元素//alert(box);alert(box[0]);var box = new Array(10);                        //创建数组，包含10个元素，必须是数字，必须是1位box[3] = '李炎恢';box[5] = '盐城';alert(box);var box = new Array('盐城');alert(box);var box = Array();alert(typeof box);var box = [];                                                //字面量的方式创建数组alert(typeof box);var box = ['李炎恢', 28, '盐城'];    //字面量的方式创建数组，并且分配了元素alert(box);var box = [1,2,];                                    //额外的逗号会让IE获取到，而参数错误alert(box.length);var box = [,,,];                                            //不允许alert(box.length);var box = ['李炎恢', 28, '盐城'];    box[1] = 100;box[4] = '计算机编程';alert(box);var box = [];    box['name'] = '李炎恢';box['age'] = 28;alert(box['name']);                    //如果是字符串下标，不会体现在数组上，而要单独拎出来var box = [];    box[0] = '李炎恢';box[1] = 28;alert(box);                            //如果是索引下标，就会在数组上体现出来var box = ['李炎恢', 28, '盐城'];    box.length = 10;                    //强制了元素量alert(box.length);                alert(box);                            //以逗号扩展补充var box = ['李炎恢', 28, '盐城'];    box[3] = '江苏';alert(box);var box  = ['李炎恢', 28, '盐城'];    box[box.length] = '江苏';            //使用.length获得最后一个下标值alert(box);*/var box = [                    {                        name : '李炎恢',                        age : 28                    },                    [3,4,6,'江苏',new Object()],                    '计算机编程',                    25+25,                    new Array(1,2,3)];alert(box);alert(box[0]['name']);