javascript Perl 包

Question

首先，我告诉你我不会说英语，但我想尝试获取有关如何将 Perl 包实施到 Javascript 中以制作 node.js 模块的信息。

为此，我想获得有关 Perl 包的更多信息。特别是我特别想知道的资料"C,H*,N"。

此外，如果我能获得有关 jspack 的更多信息，那就太好了。

提前致谢。

我实际尝试过的。

node-jspack

然而，它没有用。

日本語(Japan)

Answer 1

pack 'C'、pack 'N' 和 pack 'H*' 用于创建字节序列。

my $bytes = pack('C', $uint8);

# Array of bytes
var bytes = [];
bytes.push(uint8);

# String of bytes
var bytes = "";
bytes += String.fromCharCode(uint8);

my $bytes = pack('N', $uint32);

# Array of bytes
var bytes = [];
bytes.push((uint32 >> 24) & 0xFF);
bytes.push((uint32 >> 16) & 0xFF);
bytes.push((uint32 >>  8) & 0xFF);
bytes.push((uint32      ) & 0xFF);

# String of bytes
var bytes = "";
bytes += String.fromCharCode((uint32 >> 24) & 0xFF);
bytes += String.fromCharCode((uint32 >> 16) & 0xFF);
bytes += String.fromCharCode((uint32 >>  8) & 0xFF);
bytes += String.fromCharCode((uint32      ) & 0xFF);

my $bytes = pack('H*', $hex_str);

# Array of bytes
function hexToBytes(hex) {
    var bytes = [];
    for (var c = 0; c < hex.length; c += 2)
       bytes.push(parseInt(hex.substr(c, 2), 16));

    return bytes;
}

# String of bytes
function hexToBytes(hex) {
    var bytes = "";
    for (var c = 0; c < hex.length; c += 2)
       bytes += String.fromCharCode(parseInt(hex.substr(c, 2), 16));

    return bytes;
}

javascript Perl 包

javascript Perl pack

javascript

perl

pack

我实际尝试过的。