import os
import sys
logtxt = "logtxt.txt"
def read_txt(files, start_line):
	data = []
data.append("")
with open(str(files) + "", "r",
		encoding = 'UTF-8') as f:
	for line in f.readlines():
	line = line.strip('\n')# 去掉列表中每一个元素的换行符
data.append(line)
# 记录本次的行数
wirte_log(len(data) - 1)
if len(data) > start_line:
	return data[start_line - 1: ]
else :
	print("开始行数大于文本文件总行数！")
def wirte_log(lines):
	global logtxt
with open(logtxt, "w") as file: #”w "代表着每次运行都覆盖内容
file.write(str(lines))
def read_log():
	global logtxt
if not os.path.exists(logtxt):
	with open(logtxt, "w") as file: #”w "代表着每次运行都覆盖内容
file.write(str(1))
with open(logtxt + "", "r", encoding =
		'UTF-8') as f:
	s_lines = f.readlines()
print("从第" + str(s_lines[0]) + "行开始")
return s_lines[0]
def deal_read_log(files, keyword,
		interval_line):
	keywords = keyword.replace("(", "").replace(
		")", "").replace("'", "").replace('"',
		'"').split(',')
start_keywords = keywords[0].split("|")
end_keywords = keywords[1].split("|")
start_line = read_log()
lines_data = read_txt(files, int(
	start_line))
for_line = 1
while (for_line < len(lines_data)):
	#print(for_line)
# print(lines_data[for_line])
#
if end_keywords in lines_data[for_line]:
	#print(lines_data[for_line])
# print("-------------------")
# for_line = for_line + 1
#
else :
	isexist = 0
for sk in start_keywords:
	if sk in lines_data[for_line]:
	isexist = 1
break;
if isexist == 1:
	#if start_keywords[0] in lines_data[
		for_line] or start_keywords[1] in
	lines_data[for_line]:
	#当前行有end_keywords
isexist2 = 0
for sk in end_keywords:
	if sk in lines_data[for_line]:
	isexist2 = 1
break;
if isexist2 == 1:
	#print("行数=" + str(start_line - 1 +
		for_line) + "-" + str(start_line - 1 +
		for_line))
print(lines_data[for_line])
else :
	#当前行没有end_keywords。 往下interval_line行去寻找
# 标记当前行数
flag_line = for_line
count = 1
for_line = for_line + 1
while (for_line < len(lines_data)):
	isexist3 = 0
for sk in end_keywords:
	if sk in lines_data[for_line]:
	isexist3 = 1
break;
if isexist3 == 1:
	#print("行数=" + str(start_line - 1 +
		flag_line) + "-" + str(start_line -
		1 + for_line))
for prin in range(flag_line, for_line +
		1):
	print(lines_data[prin])
break;
for_line = for_line + 1
if count == int(interval_line):
	break;
count = count + 1
for_line = for_line - 1
for_line = for_line + 1
if name == 'main':
	files = sys.argv[1]
if '.log' in files:
	logtxt = files.replace(".log",
		"_log.txt")
else :
	logtxt = files.replace(".txt",
		"_log.txt")
# files = "ora.txt"
keywords = sys.argv[2]
# keywords = "'((04030|04000)，ORA-)'"
#上下关联行数
interval_line = int(sys.argv[3])
# interval_line = 10
deal_read_log(files, keywords,
	interval_line)