package gostring import ( "fmt" "strings" "testing" ) func TestName(t *testing.T) { str := "iPhone 11 Pro Max" fmt.Printf("%d\n", strings.LastIndex(str, "<")) fmt.Printf("%d\n", strings.LastIndex(str, "(")) fmt.Printf("%d\n", strings.LastIndex("iPad (6th generation, WiFi)", "<")) fmt.Printf("%d\n", strings.LastIndex("iPad (6th generation, WiFi)", "(")) } func TestToInt64(t *testing.T) { t.Log(ToInt64("120")) t.Log(ToInt64("120.9")) t.Log(strings.Contains("120", ",")) t.Log(strings.Contains("120,1", ",")) } func TestString(t *testing.T) { str := "wx6566ef69e8738ad9" fmt.Println(strings.Contains(str, "wx")) myString := "www.5lmh.com" if strings.HasPrefix(myString, "www") { fmt.Println("Hello to you too") } else { fmt.Println("Goodbye") } } func TestSplit(t *testing.T) { t.Log(Split("1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20", ",")) } func TestContains(t *testing.T) { t.Log(Contains("1", ",")) t.Log(Contains("1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20", ",")) }