DataView.prototype.getUint16()

getUint16()方法从DataView相对于起始位置偏移 n 个字节处开始，获取一个16-bit数(无符号短整型，2个字节).

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

语法

dataview.getUint16(byteOffset [, littleEndian])

参数

byteOffset

偏移量, 单位为字节, 从头开始计算.

littleEndian

可选 Indicates whether the 16-bit int is stored in little- or big-endian format. If false or undefined, a big-endian value is read.

返回

一个无符号短整型16位数.

抛出错误

RangeError

如果byteOffset超出了视图能储存的值，就会抛出错误.

描述

没有对齐约束; 多字节值可以从任何偏移量获取.

例子

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.getUint16(1); // 0

规范

浏览器支持

另见

• DataView
• ArrayBuffer