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交换两个字符串数据。
一:字符指针
<div class="highlighter">交换两个字符串数据。一:字符指针 3. int main() 4. { 5. void charsort2(char ** ,char **); 6. char * s1="abc"; 7. char * s2="baihe"; 8. charsort2 (&s1,&s2); 9. cout<<s1<<endl; 10. cout<<s2<<endl; 11. return 0; 12. } 13. void charsort2(char **s1,char **s2) 14. { 15. char *p; 16. p=*s1; 17. *s1=*s2; 18. *s2=p; 19. }二:字符数组 21. int main() 22. { 23. void charsort( char * ,char * ); 24. char s1[7]="abc"; 25. char s2[7]="baihe"; 26. charsort(s1,s2); 27. cout<<s1<<endl; 28. cout<<s2<<endl; 29. return 0; 30. } 31. void charsort(char *s1,char *s2) 32. { 33. char p[7]; 34. strcpy(p,s1); 35. strcpy(s1,s2); 36. strcpy(s2,p); 37. }三:字符串 39. int main() 40. { 41. void strsort(string *,string *); 42. string s1="abc"; 43. string s2="baihe"; 44. strsort(&s1,&s2); 45. cout<<s1<<endl; 46. cout<<s2<<endl; 47. return 0; 48. } 49. void strsort(string *s1,string *s2) 50. { 51. string p; 52. p=*s1; 53. *s1=*s2; 54. *s2=p; 55. }四:引用 57. int main() 58. { 59. void strsort(string &,string &); 60. string s1="abc"; 61. string s2="baihe"; 62. strsort(s1,s2); 63. cout<<s1<<endl; 64. cout<<s2<<endl; 65. return 0; 66. } 67. void strsort(string & s1,string &s2) 68. { 69. string p; 70. p=s1; 71. s1=s2; 72. s2=p; 73. }多谢论坛上朋友的分享.以下为新添方法:五:指针引用: 76. int main() 77. { 78. void charsort2(char*& ,char*&); 79. char * s1="abc"; 80. char * s2="baihe"; 81. charsort2 (s1,s2); 82. cout<<s1<<endl; 83. cout<<s2<<endl; 84. return 0; 85. } 86. void charsort2(char *&s1,char *&s2) 87. { 88. char *p; 89. p=s1; 90. s1=s2; 91. s2=p; 92. } |
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