```shell
you have already exist following path:
/home/wen_fei/OpenHarmony/llvm-master
/home/wen_fei/OpenHarmony/llvm-master_tmp
please input the path name you want to download code
if you want to delete the /home/wen_fei/OpenHarmony/llvm-master_tmp directly and then download it again, please press Enter.
llvm_test # 直接输入要存放代码的路径名