optimize the code of the command line (#3614)

2023-09-15 10:33:32 +08:00
parent 74255f711e
commit bae0b4d7c0
41 changed files with 566 additions and 1363 deletions
@@ -134,6 +134,9 @@ type PortsRange struct {
 type PortsRangeSlice []PortsRange

 func (p PortsRangeSlice) String() string {
+	if len(p) == 0 {
+		return ""
+	}
 	strs := []string{}
 	for _, v := range p {
 		if v.Single > 0 {