Perl 中的 recv函数

描述

This function receives a message on SOCKET attempting to read LENGTH bytes, placing the data read into variable SCALAR.The FLAGS argument takes the same values as the recvfrom( ) system function, on which the function is based. When communicating with sockets, this provides a more reliable method of reading fixed-length data than the sysread function or the line-based operator <FH>.

语法

以下是此函数的简单语法-

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recv SOCKET, SCALAR, LEN, FLAGS

返回值

此函数在标量context中返回:错误时为undef或读取的字节数。

链接：https://www.learnfk.comhttps://www.learnfk.com/perl/perl-recv.html

来源：LearnFk无涯教程网