本文实例讲述了python简单文本处理的方法。分享给大家供大家参考。具体如下：
由于有多线程的影响，c++项目打印出来的时间顺序不一致，导致不太好在excel中统计，故使用python写了段脚本来解决之。涉及到如下方面
1. txt文本的读取,utf8的处理
2. 字符串的基本操作
3. dict的基本操作
4. list(数组)的基本操作
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#!/usr/bin/python
#print "Hello World"
str_seperator = "=================================================================================="
timePointName = ["enter OpenNextImage at",#0
"enter OpenImage at",#1
"In OpenImage send On_ImageRefresh at",#2
"leave OpenImage at",#3
"leave OpenNextImage at",#4
"enter LoadImage at",#5
"decode began at",#6
"enter DrawClient at",#7
"leave DrawClient at",#8
"decode end at",#9
"in LoadImage send On_ImageRefresh at",#10
"leave loadImage at",#11
"second enter DrawClient at",#12
"second leave DrawClient at" #13
]
itemNumber= 0;
avgTotal = 0; #13-0
avgFirstDraw = 0; #8-2
avgLoadImage = 0; #11-5
avgSecondDraw = 0;#13-10
fobj = open("F:\log.txt","r")
imageTimeSta = {}
dic = {}
path = ""
idx = 0
for line in fobj:
idx = idx + 1
if idx == 1:
line = line[3:]
else:
pass
line = line.strip()
line = line.decode("utf-8").encode("gbk")
if line == str_seperator:
if path == "":
pass
else:
imageTimeSta[path] = dic
dic = {}
path = ""
continue
tabIndex = line.find('\t')
if tabIndex == -1:
path = line
print path
continue
tabLastIndex = line.rfind('\t')
name = line[0:tabIndex]
time = int(line[tabLastIndex + 1:])
if name in dic:
dic["second " + name] = time
else:
dic[name] = time
fobj.close()
itemNumber = len(imageTimeSta)
keys = imageTimeSta.keys();
for (k,dic) in imageTimeSta.iteritems():
avgTotal += dic[timePointName[13]] - dic[timePointName[0]];
avgFirstDraw += dic[timePointName[8]] - dic[timePointName[2]];
avgLoadImage += dic[timePointName[11]] - dic[timePointName[5]];
avgSecondDraw += dic[timePointName[13]] - dic[timePointName[10]];
print 'avgTotal',avgTotal / float(itemNumber)
print 'avgFirstDraw',avgFirstDraw / float(itemNumber)
print 'avgLoadImage',avgLoadImage / float(itemNumber)
print 'avgSecondDraw',avgSecondDraw / float(itemNumber)
#print imageTimeSta
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log.txt文件如下：
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enter OpenNextImage at 5124
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\2.JPG
enter OpenImage at 5124
In OpenImage send On_ImageRefresh at 5124
enter LoadImage at 5124
leave OpenImage at 5124
leave OpenNextImage at 5124
decode began at 5124
enter DrawClient at 5140
leave DrawClient at 5155
decode end at 5265
in LoadImage send On_ImageRefresh at 5265
leave loadImage at 5265
enter DrawClient at 5280
leave DrawClient at 5327
==================================================================================
enter OpenNextImage at 6280
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\3.JPG
enter OpenImage at 6280
In OpenImage send On_ImageRefresh at 6280
enter LoadImage at 6280
leave OpenImage at 6296
leave OpenNextImage at 6296
decode began at 6296
enter DrawClient at 6296
leave DrawClient at 6312
decode end at 6437
in LoadImage send On_ImageRefresh at 6437
enter DrawClient at 6437
leave loadImage at 6452
leave DrawClient at 6499
==================================================================================
enter OpenNextImage at 7265
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\4.JPG
enter OpenImage at 7265
In OpenImage send On_ImageRefresh at 7265
leave OpenImage at 7265
leave OpenNextImage at 7265
enter LoadImage at 7265
decode began at 7265
enter DrawClient at 7265
leave DrawClient at 7296
decode end at 7421
in LoadImage send On_ImageRefresh at 7421
enter DrawClient at 7421
leave loadImage at 7437
leave DrawClient at 7483
==================================================================================
enter OpenNextImage at 8062
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\5.JPG
enter OpenImage at 8062
In OpenImage send On_ImageRefresh at 8062
leave OpenImage at 8062
leave OpenNextImage at 8062
enter LoadImage at 8062
decode began at 8062
enter DrawClient at 8062
leave DrawClient at 8077
decode end at 8202
in LoadImage send On_ImageRefresh at 8202
enter DrawClient at 8202
leave DrawClient at 8265
leave loadImage at 8280
==================================================================================
enter OpenNextImage at 8811
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\6.JPG
enter OpenImage at 8811
In OpenImage send On_ImageRefresh at 8811
leave OpenImage at 8811
leave OpenNextImage at 8811
enter LoadImage at 8811
decode began at 8811
enter DrawClient at 8811
leave DrawClient at 8843
decode end at 8968
in LoadImage send On_ImageRefresh at 8968
leave loadImage at 8968
enter DrawClient at 8968
leave DrawClient at 9030
==================================================================================
enter OpenNextImage at 9515
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\7.JPG
enter OpenImage at 9515
In OpenImage send On_ImageRefresh at 9515
leave OpenImage at 9515
leave OpenNextImage at 9515
enter LoadImage at 9515
decode began at 9530
enter DrawClient at 9530
leave DrawClient at 9546
decode end at 9671
in LoadImage send On_ImageRefresh at 9671
enter DrawClient at 9671
leave loadImage at 9671
leave DrawClient at 9733
==================================================================================
enter OpenNextImage at 10171
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\8.JPG
enter OpenImage at 10171
In OpenImage send On_ImageRefresh at 10171
leave OpenImage at 10171
leave OpenNextImage at 10171
enter LoadImage at 10171
decode began at 10186
enter DrawClient at 10186
leave DrawClient at 10202
decode end at 10311
in LoadImage send On_ImageRefresh at 10311
leave loadImage at 10311
enter DrawClient at 10311
leave DrawClient at 10374
==================================================================================
enter OpenNextImage at 10811
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\9.JPG
enter OpenImage at 10811
In OpenImage send On_ImageRefresh at 10811
enter LoadImage at 10811
leave OpenImage at 10811
leave OpenNextImage at 10811
enter DrawClient at 10811
decode began at 10811
leave DrawClient at 10843
decode end at 10952
in LoadImage send On_ImageRefresh at 10952
leave loadImage at 10952
enter DrawClient at 10952
leave DrawClient at 11030
==================================================================================
enter OpenNextImage at 11452
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\10.JPG
enter OpenImage at 11452
In OpenImage send On_ImageRefresh at 11452
leave OpenImage at 11452
leave OpenNextImage at 11452
enter LoadImage at 11452
decode began at 11452
enter DrawClient at 11468
leave DrawClient at 11483
decode end at 11593
in LoadImage send On_ImageRefresh at 11593
enter DrawClient at 11593
leave loadImage at 11608
leave DrawClient at 11655
==================================================================================
enter OpenNextImage at 12077
enter DrawClient at 12077
leave DrawClient at 12108
==================================================================================
enter OpenNextImage at 13124
D:\pics\测试图片\解码性能对比用图\jpeg\较小图\1.jpg
enter OpenImage at 13124
In OpenImage send On_ImageRefresh at 13124
leave OpenImage at 13124
leave OpenNextImage at 13124
enter LoadImage at 13124
decode began at 13124
enter DrawClient at 13139
leave DrawClient at 13155
decode end at 13358
in LoadImage send On_ImageRefresh at 13358
leave loadImage at 13358
enter DrawClient at 13358
leave DrawClient at 13405
==================================================================================
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希望本文所述对大家的Python程序设计有所帮助。