js字符串和Byte[] 互转

[lgyg2002]

如题，请教

[bbjbepzz]

String.fromCharCode

[lgyg2002]

up

[似梦飞花]

var str="阿什顿"; for(var i=0;i<str.length;i++){ alert(str.charCodeAt(i)); } var m=[38463,20160,39039]; for(var i in m){ alert(String.fromCharCode(m[i])); } 这样？？ js是弱类型语言 貌似没有byte类型的样子 或者你把字符串传到后台后在后台转

[zhengzili813]

function stringToBytes ( str ) { var ch, st, re = []; for (var i = 0; i < str.length; i++ ) { ch = str.charCodeAt(i); // get char st = []; // set up "stack" do { st.push( ch & 0xFF ); // push byte to stack ch = ch >> 8; // shift value down by 1 byte } while ( ch ); // add stack contents to result // done because chars have "wrong" endianness re = re.concat( st.reverse() ); } // return an array of bytes return re; } stringToBytes( "A/u1242B/u4123C" ); // [65, 18, 66, 66, 65, 35, 67]