wget https://codeload.github.com/emscripten-core/emsdk/zip/refs/tags/4.0.4 -o emsdk-4.0.4.zip
cd emsdk
./emsdk install latest
./emsdk activate latest

source ./emsdk_env.sh
source "/Users/frank/wk/forbuild/emsdk-4.0.4/emsdk_env.sh"

#echo 'source "/Users/frank/wk/forbuild/emsdk-4.0.4/emsdk_env.sh"' >> $HOME/.zprofile

git clone https://github.com/emscripten-core/emsdk.git
cd emsdk
.\emsdk.bat install latest
.\emsdk.bat activate latest
.\emsdk_env.bat
# 添加相应的路径和环境变量