如何删除在字符串中打印数字的方括号[]

# Echo client program import socket import re #-------------------------------------------------------------------- import MySQLdb #-------------------------------------------------------------------- #HOST = '192.168.200.50' # The remote host #PORT = 9600 # The same port as used by the server #s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) #s.connect((HOST, PORT)) finsErrorsStrings = { 0x0000000:None, 0x0000001:'The header is not FINS (ASCII code)', 0x0000002:'The data length is too long.', 0x0000003:'The command is not supported.', 0x0000020:'All connections are in use.', 0x0000021:'The specified node is already connected.', 0x0000022:'Attempt to access a protected node from an unspecified IP', 0x0000023:'The client FINS node address is out of range.', 0x0000024:'The same FINS node address is being used by the client and server.', 0x0000025:'All the node addresses available for allocation have been used.', } def int2str4(k): return chr((k>>24) & 0xff) + chr((k>>16) & 0xff) + chr((k>>8) & 0xff) + chr((k>>0) & 0xff) def int2str3(k): return chr((k>>16) & 0xff) + chr((k>>8) & 0xff) + chr((k>>0) & 0xff) def int2str2(k): return chr((k>>8) & 0xff) + chr((k>>0) & 0xff) def binstr2int(s): n = 0 for i in range(0, len(s)): n += ord(s[i]) * ( 1<<(8*( len(s)-i-1))) return n def str2intlist(s): return [ord(c) for c in s] def intlist2str(l): return ''.join([chr(e) for e in l]) def wordlist2str( wl): if wl[0] != 0xff: print '-- Neplatna' return '' cs = '' for d in wl[1:]: n1 = ((d>>8) & 0xFF) n2 = (d & 0xFF) if n1==0: break if n2==0: cs += chr( n1) break cs += chr( n1) + chr( n2) return cs class FinsTCPframe(): def __init__(self, cmdData='', rawFinsCmd = None, cmdFlags = None, DA1=None, SA1=None, MRC=None, SRC=None, command=0x02, errorCode=0x00, serverAdr = 0, clientAdr = 0, rawTcpFrame=None ): self.FINScommandFlags= ['ICF','RSV','GCT','DNA','DA1','DA2','SNA','SA1','SA2','SID','MRC','SRC','data'] if rawTcpFrame: self.fromRaw = True self.rawTcpFrame = rawTcpFrame else: self.fromRaw = False if (MRC or SRC or cmdData) : #have some command data commandFlags = [ 0x80, # ICF 0x00, # RSV 'RSV':0 0x02, #'GCT':0x02 0x00, #'DNA':0 serverAdr, #'DA1':0 0x00, #'DA2':0 0x00, #'SNA':0 0x00, #'SA1':0 clientAdr, #'SA2':0 0x00, #'SID':0 MRC, #'MRC':0 SRC, #'SRC':0 ] if cmdFlags: for k in cmdFlags.keys() : commandFlags[ self.FINScommandFlags.index( k)] = cmdFlags[k] commandFrame = intlist2str(commandFlags) + cmdData else: #frame have TCPheader only or raw Fins Command Packet Provided if rawFinsCmd : commandFrame = rawFinsCmd else: commandFrame = '' self.rawTcpFrame ='FINS' self.rawTcpFrame += int2str4( 8 + len( commandFrame)) #frame length self.rawTcpFrame += int2str4( command) self.rawTcpFrame += int2str4( errorCode) self.rawTcpFrame += commandFrame def makeFrame(self): self.finsFrame = 'FINS' self.frameLength = 8 + len( self.finsCmdFrame) self.finsFrame += int2str4( self.frameLength) self.finsFrame += int2str4( self.finsCommand) self.finsFrame += int2str4( self.finsErrorCode) self.finsFrame += self.finsCmdFrame return self.finsFrame @property def raw(self): return self.rawTcpFrame @property def disassembled(self): asm = { 'header' : binstr2int( self.rawTcpFrame[ 0: 4] ), 'length' : binstr2int( self.rawTcpFrame[ 4: 8] ), 'command' : binstr2int( self.rawTcpFrame[ 8:12] ), 'errCode' : binstr2int( self.rawTcpFrame[12:16] ), } if( asm['command'] == 2) : asm[ 'ICF'] = binstr2int( self.rawTcpFrame[16]) asm[ 'RSV'] = binstr2int( self.rawTcpFrame[17]) asm[ 'GCT'] = binstr2int( self.rawTcpFrame[18]) asm[ 'DNA'] = binstr2int( self.rawTcpFrame[19]) asm[ 'DA1'] = binstr2int( self.rawTcpFrame[20]) asm[ 'DA2'] = binstr2int( self.rawTcpFrame[21]) asm[ 'SNA'] = binstr2int( self.rawTcpFrame[22]) asm[ 'SA1'] = binstr2int( self.rawTcpFrame[23]) asm[ 'SA2'] = binstr2int( self.rawTcpFrame[24]) asm[ 'SID'] = binstr2int( self.rawTcpFrame[25]) asm[ 'MRC'] = binstr2int( self.rawTcpFrame[26]) asm[ 'SRC'] = binstr2int( self.rawTcpFrame[27]) if self.fromRaw : #decode from response asm[ 'MRES'] = binstr2int( self.rawTcpFrame[28]) asm[ 'SRES'] = binstr2int( self.rawTcpFrame[29]) asm['response'] = self.rawTcpFrame[30:] else : asm['cmd'] = self.rawTcpFrame[28:] return asm @property def error(self): #return None if ok, else errorstring as string try: ec = binstr2int( self.rawTcpFrame[12:16]) if ec == 0: ec = None except: ec = 'Error code not found'%self.finsErrorCode return ec @property def command(self): return binstr2int( self.rawTcpFrame[ 8:12]) @property def commandResponse(self ): return self.rawTcpFrame[30:] @property def finsData(self): """Return raw data after FINS TCP header""" return self.rawTcpFrame[16:] def __str__(self): asm = self.disassembled str = ''.join([ "{0}:{1} ".format(k, asm[k], ) for k in asm.keys()]) return str class OmronPlcFinsTcp(): def __init__(self, host, port): self.port = port self.host = host self.sock = None self.open = False self.clientNode = 0 self.serverNode = 0 self.sid=0x04 @property def _nextSid(self): self.sid = (self.sid + 1 ) & 0xff return self.sid def openn(self): if self.open : #close if already open self.sock.close() self.open = False #open socket self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.sock.connect((self.host, self.port)) self.sock.settimeout( 1) #start establish fins communication print 'FINS cmd: request address' c1 = FinsTCPframe ( command = 0, rawFinsCmd = int2str4(0)) print "Sending: " + str( c1) self._send( c1.raw) r1raw = self._recieve() r1 = FinsTCPframe( rawTcpFrame = r1raw ) print "Recieved: " + str( r1) if r1.error: print 'Error in adress assign response: %s' % r1.error try : print ' - this mean>%s' % finsErrorsStrings[r1.error] except : pass return False #set client and server address against response if r1.command != 1 : print 'Error bad response for adress assign command: ' % r1.command return False self.clientNode = binstr2int( r1.finsData[0:4]) self.serverNode = binstr2int( r1.finsData[4:8]) print 'FINS address client:{0},server{1}'.format(self.clientNode, self.serverNode, ) #Get PLC type as test dummmy command return self.doFinsCommand( MRC=0x05, SRC=0x01, cmdData = '\x00')[0:20] def doFinsCommand(self, MRC, SRC, cmdData): #cmdData='', rawFinsCmd = None, cmdFlags = None, DA1=None, SA1=None, MRC=None, SRC=None, command=0x02, errorCode=0x00, serverAdr = 0, clientAdr = 0, rawTcpFrame=None ): c = FinsTCPframe(MRC=MRC, SRC=SRC, cmdData = cmdData, serverAdr=self.serverNode, clientAdr=self.clientNode, cmdFlags = {'SID':self._nextSid} ) #print "Sending: " + str( c) self._send(c.raw) r_raw = self._recieve() r = FinsTCPframe( rawTcpFrame = r_raw ) #print "Recieved: " + str( r) #print " disasm>" + str(r.disassembled) #TODO: check error and status.. return r.commandResponse def close(self): self.sock.close() self.open = False def _send(self, raw): self.sock.send( raw) #print ' Send:' + repr(raw) def _recieve(self): pr = self.sock.recv(8) length = binstr2int( pr[4:8]) r = pr + self.sock.recv( length) #print ' Recv:' + repr(r) return r class OmronPLC(): def __init__(self): self.conType = None self.plcType = None self.MEMCODES = { #'MemType':(word,bit) 'C':(0x30, 0xB0), 'W':(0x31, 0xB1), 'H':(0x32, 0xB2), 'A':(0x33, 0xB3), 'D':(0x02, 0x82), } def openFins(self, address, port=9600): self.conType = 'FINS' self.conn = OmronPlcFinsTcp( address, port) self.plcType = self.conn.openn() if (self.plcType) : print 'Open successfull to ', self.plcType, 'at ', address else : raise Exception('Failed to open PLC') def doRawFinsCommand(self, **kvarg): self.conn.doFinsCommand( kvarg) def close(self): if self.conType == 'FINS': self.conn.close() def readMemC(self, mem, length ): memSpec= re.search('(.)([0-9]*):?([0-9]*)',mem).groups() ( memCodeB, memCodeW) = self.MEMCODES[ memSpec[0]] #construct mem specification form if memSpec[2] : #BIT specs memAdr = chr( memCodeB) + int2str2( int(memSpec[1])) + chr( int(memSpec[2])) else: #Word Spec memAdr = chr( memCodeW) + int2str2( int(memSpec[1])) + chr( 0) rawres = self.conn.doFinsCommand( MRC=0x01, SRC=0x01, cmdData = memAdr + int2str2(length*2)) if memSpec[2] : #bit spec res = list( rawres) else: res = [ ord( rawres[i]) * 256 + ord( rawres[ i+1]) for i in range(0, len(rawres)/2, 2)] return res def writeMemC(self, mem, wdata ): memSpec= re.search('(.)([0-9]*):?([0-9]*)',mem).groups() ( memCodeB, memCodeW) = self.MEMCODES[ memSpec[0]] #construct mem specification form if memSpec[2] : #BIT specs raise Exception("Bit memory write : Not Implemented") else: #Word Spec memAdr = chr( memCodeW) + int2str2( int(memSpec[1])) + chr( 0) rawdata = '' for d in wdata: rawdata += int2str2(d) rawres = self.conn.doFinsCommand( MRC=0x01, SRC=0x02, cmdData = memAdr + int2str2(len(rawdata)/2) + rawdata ) return rawres

db = MySQLdb.connect(host="localhost", user="rendisk", passwd="raspberry", db="rendisk_flexwaste") sql = "INSERT INTO plc_log(data) VALUES ('%s')" % (plcput) try: db.cursor.execute(sql) db.commit() except: db.rollback() cursor.close() db.close ()

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这是自动取款机打印的

FINS cmd:请求地址发送：收割台：1179209299长度：12个命令：0错误代码：0 接收人：收割台：1179209299长度：16分命令：1错误代码：0 FINS地址客户：251，服务器4 11.0.0.4打开CP1L-EL20DT1-D3]成功

[3]

[3，8]

[3，8，0]

[3,8,0,0]

[3,8,0,0,0]

[3,8,0,0,0,0]

[3，8，0，0，0，0，0]

[3,8,0,0,0,0,0]

[3,8,0,0,0,0,0,0]

[3,8,0,0,0,0,0,0,0]

回溯（最近一次呼叫）：文件“/home/pi/combie.py公司“，第354行，英寸光标.关闭() 名称错误：未定义名称“cursor”

atm只有两个问题：游标错误和它不会将它收集的plc数据传输到mysql

3条回答

网友

1楼 · 编辑于 2024-09-28 22:32:55

d=['hai','hai1','hai2']
d=str(d)
# this part is remove the '[' from the string
for ch in ['[',']',"'",","]:
  if ch in d:
    d=d.replace(ch," ")

print d

结果：

^{pr2}$

网友

2楼 · 编辑于 2024-09-28 22:32:55

如果答案总是在同一位置包含这些括号，则可以使用：

yourString[1:-1]

它将从第二个字符返回到最后一个字符之前的子字符串。在

网友

3楼 · 编辑于 2024-09-28 22:32:55

看起来它还是一个数组！在

myNumber[0]

应该包括：）

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plc数据

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这里是数据转换凭证（emty atm）

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主脚本ender

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数据上传到mysql

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