fix bugs

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+    "go.toolsEnvVars": {
+        "PATH": "/Users/hybro/go/bin:/usr/local/go/bin:${env:PATH}"
+    },
+    "go.alternateTools": {
+        "dlv": "/Users/hybro/go/bin/dlv"
+    }
+}