Python指令碼語言,
Python 字串操作(string替換、刪除、截取、複製、串連、比較、尋找、包含、大小寫轉換、分割等)
字串長度
#strlen(sStr1) sStr= 'strlen' print len(sStr1) |
連接字串 #strcat(sStr1,sStr) sStr= 'strcat' sStr = 'append' sStr+= sStr print sStr |
比較字串
#strcmp(sStr1,sStr) sStr= 'strchr' sStr = 'strch' print cmp(sStr1,sStr) |
去空格及特殊符號
s.strip() s.lstrip() s.rstrip(',') |
複製字串
#strcpy(sStr1,sStr) sStr= 'strcpy' sStr = sStr sStr= 'strcpy' print sStr |
尋找字元 #strchr(sStr1,sStr) sStr= 'strchr' sStr = 's' nPos = sStr1.index(sStr)print nPos |
掃描字串是否包含指定的字元
#strspn(sStr1,sStr) sStr= '1345678' sStr = '456' #sStrand chars both in sStrand sStr print len(sStrand sStr) |
將字串中的大小寫轉換
#strlwr(sStr1) sStr= 'JCstrlwr' sStr= sStr1.upper() #sStr= sStr1.lower() print sStr |
追加指定長度的字串
#strncat(sStr1,sStr,n) sStr= '1345' sStr = 'abcdef' n = 3 sStr+= sStr[0:n] print sStr |
字串指定長度比較
#strncmp(sStr1,sStr,n) sStr= '1345' sStr = '13bc' n = 3 print cmp(sStr1[0:n],sStr[0:n]) |
複製指定長度的字元
#strncpy(sStr1,sStr,n) sStr= '' sStr = '1345' n = 3 sStr= sStr[0:n] print sStr |
將字串前n個字元替換為指定的字元
#strnset(sStr1,ch,n) sStr= '1345' ch = 'r' n = 3 sStr= n * ch + sStr1[3:] print sStr |
翻轉字串
#strrev(sStr1) sStr= 'abcdefg' sStr= sStr1[::-1] print sStr |
尋找字串
#strstr(sStr1,sStr) sStr= 'abcdefg' sStr = 'cde' print sStr1.find(sStr) |
掃描字串
#strpbrk(sStr1,sStr) sStr= 'cekjgdklab' sStr = 'gka' nPos = -1 for c in sStr1: if c in sStr: nPos = sStr1.index(c) break print nPos |
分割字串
#strtok(sStr1,sStr) sStr= 'ab,cde,fgh,ijk' sStr = ',' sStr= sStr1[sStr1.find(sStr) + 1:] print sStr 或者 s = 'ab,cde,fgh,ijk' print(s.split(',')) |
連接字串
delimiter = ',' mylist = ['Brazil', 'Russia', 'India', 'China'] print delimiter.join(mylist) PHP 中 addslashes 的實現 def addslashes(s): d = {'"':'\\"', "'":"\\'", "\0":"\\\0", "\\":"\\\\"} return ''.join(d.get(c, c) for c in s) s = "John 'Johny' Doe (a.k.a. \"Super Joe\")\\\0" print s print addslashes(s) |
只顯示字母與數字 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"))
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