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）

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） 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) 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) 1. 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) 2. 3. 4. 去空格及特殊符号 5. s.strip() .lstrip() .rstrip(',') 6. 7. 复制字符串 8. #strcpy(sStr1,sStr) 9. sStr= 'strcpy' 10. sStr = sStr 11. sStr= 'strcpy' 12. print sStr 13. 14. 连接字符串 15. #strcat(sStr1,sStr) 16. sStr= 'strcat' 17. sStr = 'append' 18. sStr+= sStr 19. print sStr 20. 21. 查找字符 22. #strchr(sStr1,sStr) 23. sStr= 'strchr' 24. sStr = 's' 25. nPos = sStr1.index(sStr) 26. print nPos 27. 28. 比较字符串 29. #strcmp(sStr1,sStr) 30. sStr= 'strchr' 31. sStr = 'strch' 32. print cmp(sStr1,sStr) 33. 34. 扫描字符串是否包含指定的字符 35. #strspn(sStr1,sStr) 36. sStr= '1345678' 37. sStr = '456' 38. #sStrand chars both in sStrand sStr 39. print len(sStrand sStr) 40. 41. 字符串长度 42. #strlen(sStr1) 43. sStr= 'strlen' 44. print len(sStr1) 45. 46. 将字符串中的大小写转换 47. #strlwr(sStr1) 48. sStr= 'JCstrlwr' 49. sStr= sStr1.upper() 50. #sStr= sStr1.lower() 51. print sStr 52. 53. 追加指定长度的字符串 54. #strncat(sStr1,sStr,n) 55. sStr= '1345' 56. sStr = 'abcdef' 57. n = 3 58. sStr+= sStr[0:n] 59. print sStr 60. 61. 字符串指定长度比较 62. #strncmp(sStr1,sStr,n) 63. sStr= '1345' 64. sStr = '13bc' 65. n = 3 66. print cmp(sStr1[0:n],sStr[0:n]) 67. 68. 复制指定长度的字符 69. #strncpy(sStr1,sStr,n) 70. sStr= '' 71. sStr = '1345' 72. n = 3 73. sStr= sStr[0:n] 74. print sStr 75. 76. 将字符串前n个字符替换为指定的字符 77. #strnset(sStr1,ch,n) 78. sStr= '1345' 79. ch = 'r' 80. n = 3 81. sStr= n * ch + sStr1[3:] 82. print sStr 83. 84. 扫描字符串 85. #strpbrk(sStr1,sStr) 86. sStr= 'cekjgdklab' 87. sStr = 'gka' 88. nPos = -1 89. for c in sStr1: 90. if c in sStr: 91. nPos = sStr1.index(c) 92. break 93. print nPos 94. 95. 翻转字符串 96. #strrev(sStr1) 97. sStr= 'abcdefg' 98. sStr= sStr1[::-1] 99. print sStr 100. 101. 查找字符串 102. #strstr(sStr1,sStr) 103. sStr= 'abcdefg' 104. sStr = 'cde' 105. print sStr1.find(sStr) 106. 107. 分割字符串 108. #strtok(sStr1,sStr) 109. sStr= 'ab,cde,fgh,ijk' 110. sStr = ',' 111. sStr= sStr1[sStr1.find(sStr) + 1:] 112. print sStr 113. 或者 114. s = 'ab,cde,fgh,ijk' 115. print(s.split(',')) 116. 117. 连接字符串 118. delimiter = ',' 119. mylist = ['Brazil', 'Russia', 'India', 'China'] 120. print delimiter.join(mylist) 121. PHP 中 addslashes 的实现 122. def addslashes(s): 123. d = {'"':'\\"', "'":"\\'", "\0":"\\\0", "\\":"\\\\"} 124. return ''.join(d.get(c, c) for c in s) 125. s = "John 'Johny' Doe (a.k.a. \"Super Joe\")\\\0" 126. print s 127. print addslashes(s) 128. 129. 只显示字母与数字 130. def OnlyCharNum(s,oth=''): 131. s = s.lower(); 132. fomart = 'abcdefghijklmnopqrstuvwxyz013456789' 133. for c in s: 134. if not c in fomart: 135. s = s.replace(c,''); 136. return s; 137. print(OnlyStr("a000 aa-b"))