Python 字符串操作（string替换、删除、截取、复制、连接、比较、查找、包含、大小写转换、分割等）https://blog.csdn.net/yefengnidie/article/details/6739094?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase
将字符串前n个字符替换为指定的字符 Python
1 #strnset(sStr1,ch,n) 2 sStr1 = ‘12345’ 3 ch = ‘r’ 4 n = 3 5 sStr1 = n * ch + sStr1[3:] 6 print sStr1 a[:4] #表示从字符串开头一直到a[4]前结束 https://blog.csdn.net/zhouping19851013/article/details/79310350?utm_medium=distribute.pc_relevant.none-task-blog-title-1&spm=1001.2101.3001.4242
python字符串的截取方法 https://blog.csdn.net/wuxiaobingandbob/article/details/41542111?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-3.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-3.nonecase
Python中sub()用法 import re
p = re.compile(’(blue|white|red)’)
print(p.sub(’colour’,'blue socks and red shoes’))
print(p.sub(’colour’,'blue socks and red shoes’, count=1))
Python之正则表达式——查找
https://blog.csdn.net/weixin_41432553/article/details/90411276?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase
