Emscripten是一个工具链，用于编译使用LLVM构建的asm.js和WebAssembly，它允许您以接近本机的速度在Web上运行C和C ++而无需插件。
官网：https://emscripten.org/

# Get the emsdk repo
git clone https://github.com/emscripten-core/emsdk.git

# Enter that directory
cd emsdk
# Fetch the latest version of the emsdk (not needed the first time you clone)
git pull

# Download and install the latest SDK tools.
./emsdk install latest

# Make the "latest" SDK "active" for the current user. (writes ~/.emscripten file)
./emsdk activate latest

# Activate PATH and other environment variables in the current terminal
source ./emsdk_env.sh

sudo apt install emscripten

项目地址：https://github.com/apiaryio/emscripten-docker
安装命令：

docker pull apiaryio/emcc