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一、将整数转成字符:
String.fromCharCode(17496>>8,17496&0xFF,19504>>8,19504&0xFF,12848>>8,12848&0xFF,13360>>8,13360&0xFF,17969>>8,17969&0xFF,12592>>8,12592&0xFF,12337>>8,12337&0xFF,14592>>8,14592&0xFF)
//结果:DXL02040F110019
二、将json传过来的数据, unicode 编码的字符转成普通字符:
function ascii2native(asciicode) {
asciicode = asciicode.split("\\u");
var nativeValue = asciicode[0];
for (var i = 1; i < asciicode.length; i++) {
var code = asciicode[i];
nativeValue += String.fromCharCode(parseInt("0x" + code.substring(0, 4)));
if (code.length > 4) {
nativeValue += code.substring(4, code.length);
}
}
return nativeValue;
}
//调用
ascii2native("D\u0000\u0000\u0000X\u0000\u0000\u0000L\u0000\u0000\u00000\u0000\u0000\u00002\u0000\u0000\u00000\u0000\u0000\u00004\u0000\u0000\u00000\u0000\u0000\u0000F\u0000\u0000\u00001\u0000\u0000\u00001\u0000\u0000\u00000\u0000\u0000\u00000\u0000\u0000\u00001\u0000\u0000\u00009\u0000\u0000\u0000\u0000\u0000\u0000\u0000")
//结果:DXL02040F110019
下面是摘抄的:
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#include <stdio.h> int main() { FILE *fp; int a[1] = {97}; // 这个数组只存放一个数:97 fp = fopen ( "./1.data" , "wb" ); fwrite (a, 4, 1, fp); fclose (fp); return 0; } |
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#include <stdio.h> int main() { FILE *fp; int a[4] = {97, 98, 99, 100}; char c[16]; fp = fopen ( "./1.data" , "rb" ); fread (c, 16, 1, fp); fclose (fp); int i; for (i=0; i<4; i++) { printf ( "%02x " , c[i]); } printf ( "\r\n------------\r\n" ); for (i=0; i<1; i++) { printf ( "%d" , a[i]); } return 0; }<br> |
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<?php $s = pack( "L*" , 97); file_put_contents ( ‘./1.data‘ , $s ); ?> |
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function int_to_string( $arr ) { $s = ‘‘ ; foreach ( $arr as $v ) { $a = sprintf( ‘%08x‘ , $v ); $b = ‘‘ ; // int 在内存中为逆序存放 $b .= chr ( base_convert ( substr ( $a , 6, 2), 16, 10)); $b .= chr ( base_convert ( substr ( $a , 4, 2), 16, 10)); $b .= chr ( base_convert ( substr ( $a , 2, 2), 16, 10)); $b .= chr ( base_convert ( substr ( $a , 0, 2), 16, 10)); //echo $a; $s .= $b ; } return $s ; } |
js中将 整数转成字符,,将unicode 编码后的字符还原出来的方法。
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原文地址:http://www.cnblogs.com/oxspirt/p/4793658.html