在C語言中，我們經常需要處理JSON格式的數據。而在處理JSON數據時，我們往往需要對其進行篩選。下面是一些關于C JSON篩選的基礎技巧。

// 示例JSON數據
{
"name": "張三",
"age": 18,
"gender": "男",
"score": {
"math": 90,
"english": 80,
"chinese": 70
},
"hobbies": ["籃球", "游戲", "音樂"]
}
// 篩選基本數據類型
json_object *name = json_object_object_get(json_data, "name");
char *name_str = json_object_get_string(name);
printf("姓名：%s\n", name_str);
int age = json_object_get_int(json_object_object_get(json_data, "age"));
printf("年齡：%d\n", age);
json_object *gender = json_object_object_get(json_data, "gender");
char *gender_str = json_object_get_string(gender);
printf("性別：%s\n", gender_str);
// 篩選JSON對象類型
json_object *score = json_object_object_get(json_data, "score");
int math_score = json_object_get_int(json_object_object_get(score, "math"));
printf("數學成績：%d\n", math_score);
// 篩選JSON數組類型
json_object *hobbies = json_object_object_get(json_data, "hobbies");
int hobbies_len = json_object_array_length(hobbies);
printf("愛好：");
for (int i = 0; i< hobbies_len; i++) {
json_object *hobby = json_object_array_get_idx(hobbies, i);
char *hobby_str = json_object_get_string(hobby);
printf("%s", hobby_str);
if (i != hobbies_len - 1) {
printf("，");
}
}
printf("\n");