C JSON解析rb是一個功能強大的庫，它被廣泛地應用在各種應用程序中。本文將介紹如何使用C JSON解析rb來解析JSON數據。

// 示例JSON數據
json_data = '{
"name": "John",
"age": 30,
"address": {
"street": "123 Main St.",
"city": "Anytown",
"state": "CA",
"zip": 12345
},
"phone_numbers": [
{"type": "home", "number": "555-555-1212"},
{"type": "work", "number": "555-555-1234"}
]
}';
// 解析JSON數據
json_object *root = json_tokener_parse(json_data);
// 獲取值
const char *name = json_object_get_string(json_object_object_get(root, "name"));
int age = json_object_get_int(json_object_object_get(root, "age"));
json_object *address = json_object_object_get(root, "address");
const char *street = json_object_get_string(json_object_object_get(address, "street"));
const char *city = json_object_get_string(json_object_object_get(address, "city"));
const char *state = json_object_get_string(json_object_object_get(address, "state"));
int zip = json_object_get_int(json_object_object_get(address, "zip"));
json_object *phone_numbers = json_object_object_get(root, "phone_numbers");
int array_len = json_object_array_length(phone_numbers);
for (int i = 0; i< array_len; i++) {
json_object *phone_number = json_object_array_get_idx(phone_numbers, i);
const char *type = json_object_get_string(json_object_object_get(phone_number, "type"));
const char *number = json_object_get_string(json_object_object_get(phone_number, "number"));
}
// 釋放資源
json_object_put(root);

代碼中使用的json_tokener_parse函數將JSON字符串解析為json_object對象，通過json_object_object_get函數獲取對象的值。由于JSON數據的一些值可能是數組或嵌套的對象，因此需要使用json_object_array_*函數和json_object_object_*函數來獲取其中的值。最后，通過json_object_put函數釋放資源。