step 1: wget init.sh file
wget https://rustwasm.github.io/wasm-pack/installer/init.sh
step 2 : change UPDATE_ROOT
UPDATE_ROOT="https://ghproxy.com/https://github.com/rustwasm/wasm-pack/releases/download/v0.10.1"
step 3 :bash run inir.sh file
sudo sh init.sh
