JScript ランゲージ リファレンス、lastIndexOf メソッド
WScript.Echo("abcabc".lastIndexOf("a")); WScript.Echo("abcabc".lastIndexOf("a", 1)); WScript.Echo("abcabc".lastIndexOf("a", -1)); WScript.Echo("abcabc".lastIndexOf("a", 10));
WScript.Echo("abcabc".lastIndexOf("a")); WScript.Echo("abcabc".lastIndexOf("a", 1)); WScript.Echo("abcabc".lastIndexOf("a", -1)); WScript.Echo("abcabc".lastIndexOf("a", 10));