www.mjjq.net > ArrAyBuFFEr 输出

ArrAyBuFFEr 输出

var buffer = new ArrayBuffer(12);var dataView = new DataView(buffer);var int8View = new Int8Array(buffer);dataView.setInt32(0, 0x1234ABCD);console.log(dataView.getInt32(0).toString(16)); //1234abcdconsole.log(dataView.getInt8(0...

概述ArrayBuffer (缓冲数组)是一种用于呈现通用、固定长度的二进制数据的类型。不能直接构造并填充 ArrayBuffer 的内容,而应该先创建一个 ArrayBufferView 对象,该对象用具体的格式来呈现 ArrayBuffer 的内容,你可以使用此对象来读写 Array...

// 字符串转为ArrayBuffer对象,参数为字符串 function str2ab(str) { var buf = new ArrayBuffer(str.length*2); // 每个字符占用2个字节 var bufView = new Uint16Array(buf); for (var i=0, strLen=str.length; i

差异比较明显 Array是定长的,按照文档说明为: Array[T] is Scala's representation for Java's T[]. Array存在下标越界访问的风险 而List是变长的 从效率上看,按下标访问Array快,List慢。 在头部插入,Array慢,List快。

StringBuffer s_buffer = new String(字符串); String s_string = new StringBuffer(字符串).toString();

function char2buf(str){var out = new ArrayBuffer(str.length*2);var u16a= new Uint16Array(out);var strs = str.split("");for(var i =0 ; i

function char2buf(str){ var out = new ArrayBuffer(str.length*2); var u16a= new Uint16Array(out); var strs = str.split(""); for(var i =0 ; i

function char2buf(str){ var out = new ArrayBuffer(str.length*2); var u16a= new Uint16Array(out); var strs = str.split(""); for(var i =0 ; i

function char2buf(str){ var out = new ArrayBuffer(str.length*2); var u16a= new Uint16Array(out); var strs = str.split(""); for(var i =0 ; i

var arrayBuffer = new ArrayBuffer(64);var view = new Float64Array(arrayBuffer);如上 直接将ArrayBuffer作为参数构造出Float64Array

网站地图

All rights reserved Powered by www.mjjq.net

copyright ©right 2010-2021。
www.mjjq.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com