import socket, sys host='?' port=3306 s= socket.socket(socket.AF_INET,socket.SOCK_STREAM) try: s.connect((host,port)) except socket.gaierror, e: print "Address-related error connecting to server: %s" % e sys.exit(1) except socket.error, e: print "Connection error: %s" % e sys.exit(1) while True: try: data = raw_input("I say: ") s.send(data) buf = s.recv(1024) if len(buf): print "He says: " + buf except: print "Dialogue Over" s.close() sys.exit(0)关于这个代码，pycharm报错 except socket.gaierror,e: ^ SyntaxError: invalid syntax

这个代码是 Python 2.x 的代码，在 Python 3.x 中会出现语法错误。可以将 except socket.gaierror, e: 改为 except socket.gaierror as e:。同时，raw_input() 也应该改为 input()。修改后的代码如下：

import socket
import sys

host = '?'
port = 3306
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

try:
    s.connect((host, port))
except socket.gaierror as e:
    print("Address-related error connecting to server: %s" % e)
    sys.exit(1)
except socket.error as e:
    print("Connection error: %s" % e)
    sys.exit(1)

while True:
    try:
        data = input("I say: ")
        s.send(data.encode())
        buf = s.recv(1024)
        if len(buf):
            print("He says: " + buf.decode())
    except:
        print("Dialogue Over")
        s.close()
        sys.exit(0)

请注意，此代码仅用于参考，因为 host 和 port 都是未知的，所以代码可能无法正常工作。