diff --git a/cache/src/tango_cache_pending.cpp b/cache/src/tango_cache_pending.cpp
index 9d82c31..5786561 100644
--- a/cache/src/tango_cache_pending.cpp
+++ b/cache/src/tango_cache_pending.cpp
@@ -302,51 +302,3 @@ enum cache_pending_action tfe_cache_put_pending(const struct tfe_http_field *res
     }
     return res;
 }
-
-int main()
-{
-    printf("please input the head info\n");
-    printf("first line input the head type and the num of head,0:request head  1:response head\n");
-    printf("next line input the head field,date:10,pragma :14,expires:23,cache-control:25,If-Match:26,If-None-Match:27,If-Modified-since:28,If-Unmodified-since:29,Last-Modified:30\n");
-    int head_type;
-    int head_num = 0;
-    scanf("%d %d", &head_type, &head_num);
-    struct tfe_http_field *http_heads = (struct tfe_http_field *)malloc(sizeof(struct tfe_http_field)*head_num);
-    printf("head type is %d and head_num is %d\n", head_type, head_num);
-    int i = 0;
-    for (; i < head_num; i++)
-    {
-        http_heads[i].value = (char *)malloc(sizeof(char) * 50);
-        scanf("%d ", &(http_heads[i].http_field));
-        fgets(http_heads[i].value, 50, stdin);
-        int len = strlen(http_heads[i].value);
-        http_heads[i].value[len - 1] = '\0';
-        printf("head field is %d and head value is %s\n", http_heads[i].http_field, http_heads[i].value);
-    }
-    enum cache_pending_action res;
-    struct request_freshness restrict;
-    struct response_freshness freshness;
-    switch (head_type)
-    {
-    case 0:
-        res = tfe_cache_get_pending(http_heads, head_num, &restrict);
-        printf(" request cache pending action is %d\n", res);
-        printf("request min-fresh is %lu,max-age=%lu\n", restrict.min_fresh, restrict.max_age);
-        break;
-    case 1:
-        res = tfe_cache_put_pending(http_heads, head_num, &freshness);
-        printf(" request cache pending action is %d\n", res);
-        printf("response date is %lu ,last-modified is %lu, timeout is %lu\n", freshness.date, freshness.last_modified, freshness.timeout);
-        break;
-    default:
-        assert(0);
-        break;
-    }
-
-    for (i = 0; i < head_num; i++)
-    {
-        free(http_heads[i].value);
-    }
-    free(http_heads);
-    return 0;
-}