TypeError: argument should be a Buffer
來源：程序員人生 發布時間：2016-07-11 13:47:36 閱讀次數：2884次
1、毛病描寫
> y.copy(0,10);
TypeError: argument should be a Buffer
at TypeError (native)
at repl:1:3
at REPLServer.defaultEval (repl.js:262:27)
at bound (domain.js:287:14)
at REPLServer.runBound [as eval] (domain.js:300:12)
at REPLServer.<anonymous> (repl.js:431:12)
at emitOne (events.js:82:20)
at REPLServer.emit (events.js:169:7)
at REPLServer.Interface._onLine (readline.js:211:10)
at REPLServer.Interface._line (readline.js:550:8)
>
2、毛病緣由 buffer.copy(Buffer對象,開始寫入處);
但是這里Buffer對象寫成了0
3、解決辦法
> y=Buffer('wo ai ni');
<Buffer 77 6f 20 61 69 20 6e 69>
> o=Buffer(128);
<Buffer 00 00 00 00 01 00 00 00 80 61 37 02 00 00 00 00 02 00 00 00 00 00 00 00
88 94 43 00 00 00 00 00 01 00 00 00 00 00 00 00 e8 aa 43 00 00 00 00 00 02 00 ..
. >
> o.fill(0);
<Buffer 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..
. >
> o;
<Buffer 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..
. >
> y.copy(0,10);
TypeError: argument should be a Buffer
at TypeError (native)
at repl:1:3
at REPLServer.defaultEval (repl.js:262:27)
at bound (domain.js:287:14)
at REPLServer.runBound [as eval] (domain.js:300:12)
at REPLServer.<anonymous> (repl.js:431:12)
at emitOne (events.js:82:20)
at REPLServer.emit (events.js:169:7)
at REPLServer.Interface._onLine (readline.js:211:10)
at REPLServer.Interface._line (readline.js:550:8)
> y.copy(o,10);
8
> o;
<Buffer 00 00 00 00 00 00 00 00 00 00 77 6f 20 61 69 20 6e 69 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..
. >
>
生活不易，碼農辛苦
如果您覺得本網站對您的學習有所幫助,可以手機掃描二維碼進行捐贈
