add fx.Split

example/fx/fx_test.go

@@ -1,11 +1,19 @@
 package main
 
 import (
+	"fmt"
 	"testing"
 
 	"github.com/tal-tech/go-zero/core/fx"
 )
 
+func TestFxSplit(t *testing.T) {
+	fx.Just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10).Split(4).ForEach(func(item interface{}) {
+		vals := item.([]interface{})
+		fmt.Println(len(vals))
+	})
+}
+
 func BenchmarkFx(b *testing.B) {
 	type Mixed struct {
 		Name   string