opencv读写xml文件

1. intsub_test_opencv_xml_write(void)
2. {
3. //创建文件存储对象
4. CvFileStorage*fs=cvOpenFileStorage("test.xml",CV_STORAGE_WRITE);
5. //写注释
6. cvWriteComment(fs,"测试写XML文件",1);
8. //开始写结构，类型是图map，也就是有名字的无序节点集合
9. cvStartWriteStruct(fs,"Employee",CV_NODE_MAP);
10. //注释
11. cvWriteComment(fs,"MAP类型，姓名，年龄，薪水",1);
12. //姓名
13. cvWriteString(fs,"name","刘越");
14. //年龄
15. cvWriteInt(fs,"age",18);
16. //薪水
17. cvWriteReal(fs,"salary",2780.3);
18. //销售次数
19. "sales_count",4);
20. //销售具体数据
21. intsales_record[]={30000,4200,50090};
22. //注释
23. "SEQ类型，销售记录",0); background-color:inherit">//开始写结构，类型是序列sequence，无名字的有序节点集合
24. cvStartWriteStruct(fs,"sales_record",CV_NODE_SEQ);
25. //前3条销售记录
26. cvWriteRawData(fs,sales_record,3,"i");
27. //第4条销售记录，注意无名字
28. cvWriteInt(fs,6100);
29. //结束
30. cvEndWriteStruct(fs);
31. }
32. "MAP类型，亲友",0); background-color:inherit">//开始
33. "Parent",CV_NODE_MAP);
34. //父亲
35. cvWriteString(fs,"father","杨舜");
36. //母亲
37. "mother","王娟");
38. //结束
39. cvEndWriteStruct(fs);
40. //释放文件存储对象
41. cvReleaseFileStorage(&fs);
42. }
43. intsub_test_opencv_xml_read(void)
44. {
45. //文件节点
46. CvFileNode*node,*node2;
47. char*str;
48. intcount;
49. int*d;
50. //cve_dm.debug_break();
51. //打开XML文件
52. //获得第一层数据节点
53. node=cvGetFileNodeByName(fs,"Employee");
54. str=cvReadStringByName(fs,node,"name");
55. printf("n姓名=%s",str);
56. printf("n年龄=%d",cvReadIntByName(fs,"age"));
57. printf("n薪水=%g",cvReadRealByName(fs,"salary"));
58. count=cvReadIntByName(fs,"sales_count");
59. printf("n销售%d条",count);
60. d=cvAlloc(sizeof(int)*count);
61. if(d)
62. inti;
63. node2=cvGetFileNodeByName(fs,"sales_record");
64. if(node2)
65. cvReadRawData(fs,node2,d,108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> printf("n销售记录=");
66. for(i=0;i<count;i++)
67. printf("%d,",d[i]);
68. cvFree(&d);
69. //获得第二层节点
70. "Parent");
71. printf("n根节点=%s",cvGetFileNodeName(node));
72. str=cvReadStringByName(fs,"father");
73. printf("n父亲=%s",str);
74. "mother");
75. printf("n母亲=%s",248); line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> }

（编辑：李大同）

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