如何在C中读取特定关键字的json包？

#include <stdio.h>
#include <stdlib.h>
#include "cJSON.h"

int main() {
    // 假设我们有以下JSON数据
    const char* json_data = "{\"name\":\"John\",\"age\":30,\"city\":\"New York\"}";

    // 解析JSON数据
    cJSON* root = cJSON_Parse(json_data);
    if (root == NULL) {
        printf("Failed to parse JSON data.\n");
        return 1;
    }

    // 读取特定关键字的值
    cJSON* name = cJSON_GetObjectItemCaseSensitive(root, "name");
    if (cJSON_IsString(name) && (name->valuestring != NULL)) {
        printf("Name: %s\n", name->valuestring);
    }

    cJSON* age = cJSON_GetObjectItemCaseSensitive(root, "age");
    if (cJSON_IsNumber(age)) {
        printf("Age: %d\n", age->valueint);
    }

    cJSON* city = cJSON_GetObjectItemCaseSensitive(root, "city");
    if (cJSON_IsString(city) && (city->valuestring != NULL)) {
        printf("City: %s\n", city->valuestring);
    }

    // 释放内存
    cJSON_Delete(root);

    return 0;
}