Common Python string operations

Python string operations (string replacement, deletion, interception, replication, connection, comparison, search, inclusion, case-insensitive conversion, and Segmentation)

Python string operations (string replacement, deletion, truncation, replication, connection, comparison, search, inclusion, case-insensitive conversion, segmentation, etc.) Remove spaces and special symbols s. strip (). lstrip (). rstrip (',') Copy string # strcpy (sStr1, sStr) sStr = 'strcpy' print sStr connection string # strcat (sStr1, sStr) sStr = 'strcat' sStr = 'append' sStr + = sStr print sStr search character # strchr (sStr1, sStr) sStr = 'strchr' sStr = 's' nPos = sStr1.index (sStr) print nPos comparison string # strcmp (sStr1, sStr) sStr = 'strchr' sStr = 'strch' print cmp (sStr1, sStr) scan string to see if it contains specified characters # strspns (sStr1, sStr) sStr = '000000' sStr = '000000' # sStrand chars both in sStrand sStr print len (sStrand sStr) String Length # strlen (sStr1) sStr = 'strlen' print len (sStr1) convert the case in the string # strlwr (sStr1) sStr = 'jcstrlwr 'sStr = sStr1.upper () # sStr = sStr1.lower () print sStr append the string of the specified length # strncat (sStr1, sStr, n) sStr = '123' sStr = 'abcdef 'n = 3 sStr + = sStr [0: n] print sStr string specified length comparison # strncmp (sStr1, sStr, n) sStr = '000000' sStr = '13bc' n = 3 print cmp (sStr1 [0: n], sStr [0: n]) copy characters of the specified length # strncpy (sStr1, sStr, n) sStr = ''sstr = '000000' n = 3 sStr = sStr [0: n] print sStr Replace the first n characters of the string with the specified character # strnset (sStr1, ch, n) sStr = '000000' ch = 'R' n = 3 sStr = n * ch + sStr1 [3:] print sStr scan string # strpbrk (sStr1, sStr) sStr = 'cekjgdklab 'sStr = 'gka' nPos =-1 for c in sStr1: if c in sStr: nPos = sStr1.index (c) break print nPos flip string # strrev (sStr1) sStr = 'abcdefg' sStr = sStr1 [:-1] print sStr search string # strstr (sStr1, sStr) sStr = 'abcdef' sStr = 'cde' print sStr1.find (sStr) split string # strtok (sStr1, sStr) sStr = 'AB, cde, fgh, ijk 'sstr =', 'sstr = sStr1 [sStr1.find (sStr) + 1:] print sStr or s = 'AB, cde, fgh, ijk' print (s. split (',') connection string delimiter = ', 'mylist = ['Brazil', 'Russia ', 'India', 'China'] print delimiter. implementation of addslashes in join (mylist) PHP def addslashes (s): d = {'"':'\\"',"'":"\\'", "\ 0": "\ 0", "\": "\"} return ''. join (d. get (c, c) for c in s) s = "John 'Johnny 'Doe (a.k. a. \ "Super Joe \") \ 0 "print s print addslashes (s) only show letters and numbers def OnlyCharNum (s, oth =''): s = s. lower (); fomart = 'abcdefghijklmnopqrstuvwxyz013456789 'for c in s: if not c in fomart: s = s. replace (c, ''); return s; print (OnlyStr (" a000 aa-B "))