我无法在matchobject（regex python）中打印匹配的完整单词

当我执行'm.group（）'时，如果模式匹配，则打印模式，而不是它匹配的字。有人能帮忙吗

import sys
import re

def main():

  str = sys.argv[1]
  m = re.search(str,'this is a sample text')
  print m.group()

if __name__ == '__main__':
  main()

您可以这样使用：

re.py:

import sys
import re

def main():
  str = sys.argv[1]
  for word in re.findall(r"\w+", 'this is a sample text'):
    if str in word:
      print word

if __name__ == '__main__':
  main()

C:\Users\USER\Google Drive\Python_stuff>re.py tex
text

用法示例：

import sys
import re

def main():
  str = sys.argv[1]
  for word in re.findall(r"\w+", 'this is a sample text'):
    if str in word:
      print word

if __name__ == '__main__':
  main()

C:\Users\USER\Google Drive\Python_stuff>re.py tex
text

您可以这样使用：

re.py:

import sys
import re

def main():
  str = sys.argv[1]
  for word in re.findall(r"\w+", 'this is a sample text'):
    if str in word:
      print word

if __name__ == '__main__':
  main()

C:\Users\USER\Google Drive\Python_stuff>re.py tex
text

用法示例：

import sys
import re

def main():
  str = sys.argv[1]
  for word in re.findall(r"\w+", 'this is a sample text'):
    if str in word:
      print word

if __name__ == '__main__':
  main()

C:\Users\USER\Google Drive\Python_stuff>re.py tex
text

---

输出：C:\Users\USER\Google Drive\Python\u stuff>re.py tex您是否要打印包含图案的字？使用

str=r'\b\w*'+re.escape（sys.argv[1]）+r'\w*'

OUTPUT:C:\Users\USER\Google Drive\Python\u stuff>re.py tex您是否试图打印包含图案的字？使用

str=r'\b\w*'+re.escape（sys.argv[1]）+r'\w*'