diff --git a/code.bak b/code.bak
deleted file mode 100644
index 4e92421..0000000
--- a/code.bak
+++ /dev/null
@@ -1,44 +0,0 @@
-//        if (lastBufRemain < BLOCK_HEADER_LENGTH) { // 上次遗留的数据不够解析block 长度
-//            memcpy(&preBlock[lastBufRemain], curBuf, BLOCK_HEADER_LENGTH);
-//            curReadPos += BLOCK_HEADER_LENGTH;
-//            lastBufRemain += BLOCK_HEADER_LENGTH;
-//        }
-//        blockLen = unpackInt16(&preBlock[16]) + 1;
-//        const int lenToRead = blockLen - lastBufRemain;
-//        memcpy(&preBlock[lastBufRemain], &curBuf[curReadPos], lenToRead);
-//        curReadPos += lenToRead;
-//        curStartAddrArr->push_back(&preBlock[0]);
-
-        // curStartAddrArr->push_back(&curBuf[0]);
-        // spdlog::info("first blocklen: {}, remain: {}, toread: {}", blockLen, lastBufRemain, lenToRead);
-        // uint8_t buf[65535];
-        // int block_length = unpackInt16(&preBlock[16]) + 1;
-        // uint32_t crc = le_to_u32(preBlock + block_length - 8);
-        // size_t dlen = 65535;
-        // int ret = bgzf_uncompress(buf, &dlen, (Bytef *)preBlock + 18, block_length - 18, crc); // 开头是header，得跳过
-        // int bamLen = *(uint32_t *)(buf);
-        // spdlog::info("ret: {}, bamLen: {}, dlen: {}, block_length: {}", ret, bamLen, dlen, block_length);
-        // exit(0);
-
-                // spdlog::info("read block len: {}", blockLen);
-
-        // spdlog::info("cur block size: {}", curStartAddrArr->size());
-
-            PROF_G_BEG(read);
-    readState = fread(fbuf[4], 1, READ_BUFSIZE, fpr);
-    readState = fread(curBuf, 1, READ_BUFSIZE, fpr);
-    PROF_G_BEG(mem_copy);
-    memcpy(curBuf, fbuf[4], READ_BUFSIZE);
-    PROF_G_END(mem_copy);
-    PROF_G_END(read);
-
-            // kt_for(nsgv::gSortArg.NUM_THREADS, mtUncompressBlock, &sortData, curStartAddrArr->size() / BATCH_SIZE);
-        // if (uncommpressedDataSize(sortData) >= nsgv::gSortArg.MAX_MEM) {
-        //     kt_for(nsgv::gSortArg.NUM_THREADS, mtSortBlocks, &sortData, nsgv::gSortArg.NUM_THREADS);
-        //     mergeSortedBlocks(sortData);
-        // }
-
-            //setvbuf(fpr, (char*)fbuf[4], _IOFBF, 0);
-    //setvbuf(fpr, (char *)fbuf[4], _IONBF, READ_BUFSIZE);
-
-        // const size_t READ_BUFSIZE = 8L * 1024 * 1024;
\ No newline at end of file