buf.readInt32BE([offset])

• offset <integer> 在开始读取之前要跳过的字节数。必须满足 0 <= offset <= buf.length - 4。默认值： 0。
• 返回：<integer>

从指定的 offset 处的 buf 中读取一个带符号的大端32位整数。

【Reads a signed, big-endian 32-bit integer from buf at the specified offset.】

从 Buffer 读取的整数被解释为二进制补码的有符号值。

【Integers read from a Buffer are interpreted as two's complement signed values.】

import { Buffer } from 'node:buffer';

const buf = Buffer.from([0, 0, 0, 5]);

console.log(buf.readInt32BE(0));
// Prints: 5const { Buffer } = require('node:buffer');

const buf = Buffer.from([0, 0, 0, 5]);

console.log(buf.readInt32BE(0));
// Prints: 5拷贝