[英]search a word in a file and print the line number where that word occurs in python
[英]search the line in a file for a number after a particular word and iterate over that number
我有一個包含多行的文件,其中一個讀為:loop_iter 10 {apples = 0; 桔子= 0}
import sys
import re
input_file = open(r'C:\infile')
pat_file_read = input_file.read()
for line in input_file_read:
match = re.search("loop_iter\s*(\d+)" , input_file_read)
print match.group(1)
現在我可以將其打印多次,只要文件中有行
for line in input_file_read:
if line.startswith("loop_iter"):
match = re.search("loop_iter\s*(\d+)" , input_file_read)
print match.group(1)
不起作用...
堆棧溢出中此處的語法着色可能已經為您提供了提示...但是看來您的引號不匹配:
if line.startswith('loop_iter"):
嘗試
if line.startswith("loop_iter"):
我想一旦將match.group(1)轉換為整數,就可以使用它。
import sys
import re
input_file = open(r'C:\infile')
pat_file_read = input_file.read()
for line in input_file_read:
match = re.search("loop_iter\s*(\d+)" , input_file_read)
i = int(match.group(1))
for x in range i:
print 'something'
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