package check func IsAllNum(checkStr string) bool { for _, item := range checkStr { if item >= []rune("0")[0] && item <= []rune("9")[0] { continue } return false } return true } func IsContainNum(checkStr string) bool { for _, item := range checkStr { if item >= []rune("0")[0] && item <= []rune("9")[0] { return true } } return false }