task commit

keweiLv · Dec 12, 2021 · 1056bfd · 1056bfd · LeoLi-Goat · Dec 19, 2021
commit 1056bfd
Showing 1 changed file with 23 additions and 0 deletions.
diff --git a/FirstTask/main.go b/FirstTask/main.go
@@ -0,0 +1,23 @@
+package FirstTask
+
+import (
+	"database/sql"
+	"fmt"
+	"github.com/pkg/errors"
+)
+
+func main() {
+	err := Call()
+	if errors.Cause(err) == sql.ErrNoRows {
+		fmt.Printf("data not found,%v\n", err)
+		fmt.Printf("%+v\n", err)
+		return
+	}
+}
+
+func getSql() error {
+	return errors.Wrap(sql.ErrNoRows, "getSql failed")
+}
+func Call() error {
+	return errors.WithMessage(getSql(), "call failed")
+}