fix delete

cmd/cron_task/Makefile

@@ -0,0 +1,23 @@
+.PHONY: all build run gotool install clean help
+
+BINARY_NAME=cron_task
+BIN_DIR=../../../bin/
+
+all: gotool build
+
+build:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s"
+
+run:
+	@go run ./
+
+gotool:
+	go fmt ./
+	go vet ./
+
+install:
+	make build
+	mv ${BINARY_NAME} ${BIN_DIR}
+
+clean:
+	@if [ -f ${BINARY_NAME} ] ; then rm ${BINARY_NAME} ; fi