TypeScript 数组定义方式

方式一：

var arr1:Array<number> = [1,2,3];

var arr2:Array<any> = [];

方式二：

var arr3:number[] = [3,4,5,6,7,8];

var arr4:any[] =new Array(5,6,7,8);

类型转换: var arr5:Array<number> =<number[]>arr4;

();