TypeError: argument should be a Buffer

概述1、错误描述&gt y.copy(0,10);TypeError: argument should be a Buffer at TypeError (native) at repl:1:3 at REPLServer.defaultEval (repl.js:262:27) a

1、毛病描写

> 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、毛病缘由

     buffer.copy(Buffer对象,开始写入处);

     但是这里Buffer对象写成了0

3、解决办法

> 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 0088 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 0000 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 0000 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 0000 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 ... >>

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