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-
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。
When above code is executed, it produces the following result −
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