下面的代码哪里出现了段错误int GetStrInBuf( char *json_str, char *Keygroup, char* KeyName,char *KeyVal, int type) { char buf[512] = {0}; char buf1[512] = {0}; FILE *fp; char docat[128] = {0}; long profilelen; printf("in:%s\n",json_str); struct json_object* json_obj = json_tokener_parse(json_str); struct json_object *person = json_object_object_get(json_obj, "data"); strcpy(buf1, json_object_get_string(person)); printf("buf1:%s\n",buf1); // printf("Age: %d\n", json_object_get_int(json_object_object_get(json_obj, "age"))); memset(buf, 0x00, sizeof(buf)); if(type == 0) { strcpy(buf, json_object_get_string(json_object_object_get(person, KeyName))); if(strlen(buf) == 0) { memset(KeyVal, 0x00, sizeof(KeyVal)); } else{ snprintf(KeyVal, (strlen(buf)+1), "%s", buf); printf("name:%s,value_str:%s\n", KeyName, KeyVal); } } else { int str_value = json_object_get_int(json_object_object_get(person, "deviceId")); sprintf(KeyVal,"%d", str_value); printf("name:%s,value_in:%s\n", KeyName, KeyVal); } memset(json_obj, 0x00, strlen(json_obj) + 1); memset(person, 0x00, strlen(person) + 1); free(json_obj); free(person); json_object_put(json_obj); json_object_put(person); return 0; }

根据代码分析，很可能在执行 `json_object_put(json_obj)` 和 `json_object_put(person)` 时出现了段错误。这是因为 `json_object_put` 函数会释放对象占用的内存，而该段代码中的 `json_obj` 和 `person` 对象都已经被 `free` 释放掉了，再次调用 `json_object_put` 函数就会导致段错误。建议在释放内存前不要再调用 `json_object_put` 函数。