切换目录

# 切换目录（客户端代码）
import socket
import os

sk = socket.socket()
sk.connect(("127.0.0.1",8090))

abs_path = input('请输入一个根目录：')
sk.send(abs_path.encode('utf-8'))
current_dir = sk.recv(1024).decode('utf-8')
print(current_dir.split('--'))

while 1:
    cmd = input('请输入指令>>>')
    sk.send(cmd.encode('utf-8'))

    if cmd.upper() == 'Q': # 退出循环
        break

    elif cmd == '..':
        current_dir = sk.recv(1024).decode('utf-8')
        print(current_dir.split('--'))

    elif cmd == 'cd':
        filename = input('请输入一个文件名>>>')
        sk.send(filename.encode('utf--8'))
        current_dir = sk.recv(1024).decode('utf-8')
        print(current_dir.split('--'))

    else:
        error = sk.recv(1024).decode('utf-8')
        print(error)

# 切换目录（服务器端代码）
import socket
import os

sk = socket.socket()
sk.bind(('127.0.0.1',8090))
sk.listen()
conn,addr = sk.accept()


def send_data(conn,path):
    try: # 当文件找不到时会出错，故用try来解决一问题
        list_dir = os.listdir(path)
        current_dir = '--'.join(list_dir)
        conn.send(current_dir.encode('utf-8'))
    except FileNotFoundError:
        conn.send('系统找不到指定的路径。'.encode('utf-8')) # 文件找不到时返回这个错误


abs_path = conn.recv(1024).decode('utf-8')
current_path = abs_path + '\\'
send_data(conn,current_path)

while 1:
    cmd = conn.recv(1024).decode('utf-8')
    if cmd.upper() == 'Q':
        break

    elif cmd == '..':
        current_dir = current_path.split('\\')[:-2]
        current_path = '\\'.join(current_dir) + '\\'
        send_data(conn,current_path)

    elif cmd == 'cd':
        filename = conn.recv(1024).decode('utf-8')
        current_path += filename + '\\'
        send_data(conn,current_path)

    else:
        conn.send('指令错误'.encode('utf-8'))

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