cookbook之字串匹配和搜尋

參考

import datetime

text =
'yao, yao, qie ke nao, jian bing guo zi, yao, lai, yi, tao, '
print(text.find(
'tao'
))#會返回第一次匹配到元素的下標
text2 = datetime.date.today(
)#顯示當前的年月日
text2 = str(text2)
print(type(text2))
print(text2)
import re
text1 =
'11/27/2012'
if re.match(r'\d+\-\d+\-\d+',text2):#原始字串
print(
'ok'
)else:
print(
"no"
)text =
'today is 11/27/2012. pycon starts 3/13/2013.'
a = re.findall(r'\d+/\d+/\d+',text)
print(a)
b = re.findall(r'(\d+)/(\d+)/(\d+)', text)
print(b)
#元組的形式
print(
'-----------------------'
)#使用迭代的方式展示
for m in re.finditer(r'(\d+)/(\d+)/(\d+)', text):
print(m.group(0))
print(m.group(1))
print(m.group(2))
print(m.group(3))
print(m.groups(
))    print(
'+++++++'
)test
= re.compile(r'(\d+)/(\d+)/(\d+)$'
)print(test.match(
'11/27/2012abcdef'
))print(test.match(
'11/27/2012'
).group(0))

cookbook之字串搜尋和替換

參考 import datetime import re from calendar import month abbr text yeah,but no,but yeah,but no,but yeah print text.replace yeah love print text date da...

字串匹配之kmp

kmp主要就是計算字首函式e q max return m void kmp char s,char p int n strlen s int m prefixcomp p,e int k 0 for int i 1 i n i putchar n 習題 試說明如何通過檢查字串pt的字首函式e,來確...

PHP之字串匹配

1 strstr string,search strstr 函式搜尋乙個字串在另乙個字串中的第一次出現。該函式返回字串的其餘部分 從匹配點 如果未找到所搜尋的字串，則返回 false。string 必需。規定被搜尋的字串。search 必需。規定所搜尋的字串。如果該引數是數字，則搜尋匹配數字 asc...