c# socket问题

happy123

请教Python中socket这部分代码在c#中怎么写，代码如下：

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    try:
        chunk = s.recv(4)
    except:
        return ""
    print(chunk)
    if len(chunk) < 4:
        return ()
    slen = struct.unpack('<I', chunk)[0]
    chunk = s.recv(slen)
    while len(chunk) < slen:
        chunk = chunk + s.recv(slen - len(chunk))
    return chunk