//?1.
var?buffer1?=?new?Buffer('Hello?World')

console.log('buffer1:?'?+?buffer1)

//?2.
var?buffer2?=?new?Buffer('Hello?World',?'base64')

console.log('buffer2:?'?+?buffer2)

//?3.
var?buffer3?=?new?Buffer(10)

console.log('buffer3:?'?+?buffer3.length)

//?4.
var?buffer4?=?new?Buffer('12345678')

console.log('buffer4:?'?+?buffer4)

var?buffer5?=?new?Buffer(7)

buffer5.write('12345678')

console.log('buffer5:?'?+?buffer5)

輸出結果
buffer1:?Hello?World
buffer2:?ej+
buffer3:?10
buffer4:?12345678
buffer5:?1234567

1. 為什么會亂碼

2. 為什么輸出的不是形如<Buffer 31 32>這種

????? ? 求解答