python提取txt信息，处理，输出

1. 文件路径设定及文件遍历

import os
path = 'E:\\Python36\\testdata'
os.chdir(path)
os.listdir()
for filename in os.listdir():
	file = open(filename, 'r')
	for eachline in file.readlines():
		# process eachline

2. 提取glass ID

IDlist = []
	
file = open('A1770266172.txt', 'r')
for line in file.readlines():
	if line.startswith('Process'):
		ID = line[37: ]
		IDlist.append(ID)
			
print(IDlist)

3. 提取Input/Buffer/Inspection/Printer/UvLevel/Output时间

for line in file.readlines():
	if line.startswith('Arrived at Input'):
		InputIN = line[20:39]
	elif line.startswith('Departed at Input'):
		InputOUT = line[18:37]	
	elif line.startswith('Arrived at Buffer'):
		BufferSLOT = line[17:18]
		BufferIN = line[22:41]	
	elif line.startswith('Departed at Buffer'):
		BufferOUT = line[20:39]
	elif line.startswith('Arrived at Inspection'):
		InspectionIN = line[25: ]	
	elif line.startswith('Departed at Inspection'):
		InspectionOUT = line[23:42]
	elif line.startswith('Arrived at Printer'):
		PrinterIN = line[22: ]	
	elif line.startswith('Departed at Printer'):
		PrinterOUT = line[20:39]
	elif line.startswith('Arrived at UvLevel'):
		UVSLOT = line[18:19]
		UVIN = line[23: ]	
	elif line.startswith('Departed at UvLevel'):
		UVOUT = line[20: ]
	elif line.startswith('Arrived at Output'):
		OutputIN = line[21: ]	
	elif line.startswith('Departed at Output'):
		OutputOUT = line[19:38]
	
	else:
		InputIN = 'NA'

4. 把提取的信息存入文件中

import csv
with open('E:\\Python36\\glass.csv', 'w', newline='') as csvfile:
	fieldnames1 = ['glass ID', 'input in', 'input out', 'buffer in', 'buffer out', 'aoi in', 'aoi out', 'printer in', 'printer out', 'uv in', 'uv out', 'output in', 'output out', 'buffer slot', 'uv level']
	writer = csv.DictWriter(csvfile, fieldnames=fieldnames1)
	writer.writeheader()
	for item in list_dict:
		writer.writerow(item)

5. 整合完整代码

import os
path = 'E:\\Python36\\testdata'
os.chdir(path)
os.listdir()
glass = []
list_dict = []

for filename in os.listdir():
    a=b=c=d=e=f=g=h=i=j=k=l=m= 0   
    file = open(filename, 'r')
    for line in file.readlines():
        if line.startswith('Process'):  
            a = a+1
            if a < 2:
                ID = line[37: -1]
                glass.append(ID)
            else:
                continue
        elif line.startswith('Arrived at Input'):
            b = b+1
            if b < 2:
                InputIN = line[20:39]
                glass.append(InputIN)
            else:
                continue
        elif line.startswith('Departed Input'):
            c = c +1
            if c < 2:
                InputOUT = line[18:37]
                glass.append(InputOUT)
            else:
                continue
        elif line.startswith('Arrived at Buffer'):
            d = d+1
            if d <2:
                BufferSLOT = line[17:18]
                glass.append(BufferSLOT)
                BufferIN = line[22:41]
                glass.append(BufferIN)
            else:
                continue
        elif line.startswith('Departed Buffer'):
            e = e+1
            if e<2:
                BufferOUT = line[20:39]
                glass.append(BufferOUT)
            else:
                continue
        elif line.startswith('Arrived at Inspection'):
            f = f+1
            if f <2:
                InspectionIN = line[25: -1]
                glass.append(InspectionIN)
            else:
                continue
        elif line.startswith('Departed Inspection'):
            g = g+1
            if g<2:
                inspectionOUT = line[23:42]
                glass.append(inspectionOUT)
            else:
                continue
        elif line.startswith('Arrived at Printer'):
            h =h+1
            if h<2:
                PrinterIN = line[22: -1]
                glass.append(PrinterIN)
            else:
                continue
        elif line.startswith('Departed Printer'):
            i = i+1
            if i<2:
                PrinterOUT = line[20:39]
                glass.append(PrinterOUT)
            else:
                continue
        elif line.startswith('Arrived at UvLevel'):
            j = j+1
            if j<2:
                UVSLOT = line[18:19]
                glass.append(UVSLOT)
                UVIN = line[23: -1]
                glass.append(UVIN)
            else:
                continue
        elif line.startswith('Departed UvLevel'):
            k =k+1
            if k<2:
                UVOUT = line[21: -1]
                glass.append(UVOUT)
            else:
                continue
        elif line.startswith('Arrived at Output'):
            l = l+1
            if l<2:
                OutputIN = line[21: -1]
                glass.append(OutputIN)
            else:
                continue
        elif line.startswith('Departed Output'):
            m = m+1
            if m<2:
                OutputOUT = line[19:38]
                glass.append(OutputOUT)
            else:
                continue
        
    

    dic = {'glass ID':ID, 'input in':InputIN, 'input out':InputOUT, 'buffer slot':BufferSLOT, 'buffer in':BufferIN, 'buffer out':BufferOUT, 'aoi in':InspectionIN, 'aoi out':inspectionOUT, 'printer in':PrinterIN, 'printer out':PrinterOUT, 'uv level':UVSLOT, 'uv in':UVIN, 'uv out':UVOUT, 'output in':OutputIN, 'output out':OutputOUT}
    #print(dic)
    list_dict.append(dic)
    
import csv
with open('E:\\Python36\\glass.csv', 'w', newline='') as csvfile:
    fieldnames1 = ['glass ID', 'input in', 'input out', 'buffer in', 'buffer out', 'aoi in', 'aoi out', 'printer in', 'printer out', 'uv in', 'uv out', 'output in', 'output out', 'buffer slot', 'uv level']
    writer = csv.DictWriter(csvfile, fieldnames=fieldnames1)
    writer.writeheader()
    for item in list_dict:
        writer.writerow(item)