A: Cache

Author: Shuo

.github/workflows/go.yml

@@ -19,7 +19,11 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
-    - uses: actions/cache@v2
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ~/*/*/go-build/
+        key: ${{ runner.os }}-go-build
 
     - name: Get dependencies
       run: go get -v -t -d ./...