diff --git a/design_doc/command_record.md b/design_doc/command_record.md
index 2ead611..bacf828 100644
--- a/design_doc/command_record.md
+++ b/design_doc/command_record.md
@@ -1,12 +1,12 @@
 
-1. CPP构建命令：
+1. CPP构建命令：在docker环境下执行以下命令
 
-cd /mnt/d/code/archery/cpp_ext
+cd /data/cpp_ext
 rm -rf build && mkdir build && cd build
 
-TOOLCHAIN_BIN=/mnt/d/code/MaixCDK/dl/extracted/toolchains/maixcam/host-tools/gcc/riscv64-linux-musl-x86_64/bin
-PYDEV=/mnt/d/code/shooting/python3_lib_maixcam_musl_3.11.6
-MAIXCDK=/mnt/d/code/MaixCDK
+TOOLCHAIN_BIN=/data/MaixCDK-main/dl/extracted/toolchains/maixcam/host-tools/gcc/riscv64-linux-musl-x86_64/bin
+PYDEV=/data/python3_lib_maixcam_musl_3.11.6
+MAIXCDK=/data/MaixCDK-main
 
 cmake .. -G Ninja \
   -DCMAKE_C_COMPILER="${TOOLCHAIN_BIN}/riscv64-unknown-linux-musl-gcc" \