Add new file

go.mod

+module wenzhi.cn/grammer
+
+go 1.19
+
+require (
+	github.com/agiledragon/gomonkey v2.0.2+incompatible // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/myzhan/boomer v1.6.1-0.20230108051802-7f2007b93a64 // indirect
+	github.com/prashantv/gostub v1.1.0 // indirect
+	github.com/prometheus/common v0.39.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
+	// github.com/rivo/uniseg v0.4.3 // indirect
+	github.com/smartystreets/goconvey v1.7.2 // indirect
+	github.com/stretchr/testify v1.8.0 // indirect
+	golang.org/x/sys v0.4.0 // indirect
+	golang.org/x/tools v0.1.12 // indirect
+	// golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect 报错
+	// go mod tidy (1.18把直接和间接的require分开，1.16还没)
+)