Question

我正在使用cJSON，但不知怎的，我无法让字符串起作用：

void myfile()
{
  cJSON* type = NULL;
  char text1[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\":       \"rect\", \n\"width\":      1920, \n\"height\":     1080, \n\"interlace\":  false,\"frame rate\": 24\n}\n}";
  cJSON * root = cJSON_Parse(text);
  cJSON * format = cJSON_GetObjectItem(root,"format"); 
  int framerate = cJSON_GetObjectItem(format,"frame rate")->valueint;
  type = cJSON_GetObjectItem(format,"type")->valuestring;
  char * rendered = cJSON_Print(root);
  cJSON_Delete(root);
  printf("rate = %d, type = %s \n", framerate, type) ;
}

我只是垃圾。我也试过这个，但它甚至没有编译：

char *type[] = cJSON_GetObjectItem(format,"type")->valuestring;

Answer 1

char text[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\":       \"rect\", \n\"width\":      1920, \n\"height\":     1080, \n\"interlace\":  false,\"frame rate\": 24\n}\n}";
cJSON * root   = cJSON_Parse(text);
cJSON * format = cJSON_GetObjectItem(root,"format"); 
cJSON * type   = cJSON_GetObjectItem(format,"type");
int framerate = cJSON_GetObjectItem(format,"frame rate")->valueint;
char * rendered = cJSON_Print(root);
printf("%s\n", rendered);
printf("rate = %d, type = %s \n", framerate, type->valuestring);
free(rendered);
cJSON_Delete(root);

如何使用cJSON读取字符串

1 个答案: