buffer.js
let a = new Buffer('abc');
let b = new Buffer('efg');
let c = Buffer.concat([a,b]);
console.log(c);
buffer 16进制 a===>61====>97(十进制,ascii码表)
buffer.js
let a = new Buffer('abc');
let b = new Buffer('efg');
let c = Buffer.concat([a,b]);
console.log(c);
buffer 16进制 a===>61====>97(十进制,ascii码表)