void josnscan()
{
    char *str = "{\"test\":\"0100\", \"test2\":\"0200#2\",\"test3\":123,\"test4\":[\"0100\", \"0200#2\"]}";

    cJSON *root;
    root = cJSON_Parse(str);
    cJSON *childNode;
    int arraySize = cJSON_GetArraySize(root);
    printf("arraySize %d\n", arraySize);
    int i;
    for(i = 0; i < arraySize; i++)
    {
        childNode = cJSON_GetArrayItem(root, i);
        if(childNode == NULL) continue;
        printf("%d %s\n", childNode->type, childNode->string);
        if(childNode->type == cJSON_String)
        {
            printf("childNode %s\n", childNode->valuestring);
        }
        else if(childNode->type == cJSON_Number)
        {
            printf("childNode %d\n", childNode->valueint);
        }
        else if(childNode->type == cJSON_Array)
        {
            cJSON *tmp;
            int Size = cJSON_GetArraySize(childNode);
            int j;
            for(j = 0; j < Size; j++)
            {
                tmp = cJSON_GetArrayItem(childNode, j);
                if(tmp == NULL) continue;
                printf("tmp %s\n", tmp->valuestring);
            }
        }
    }
}

运行结果

arraySize 4
16 test
childNode 0100
16 test2
childNode 0200#2
8 test3
childNode 123
32 test4
tmp 0100
tmp 0200#2