从文档中，您可以使用 StringTokenizer st = new StringTokenizer（str，L，true）; 最后一个参数是一个布尔值，指定也必须返回分隔符。

From the docs, you can use StringTokenizer st = new StringTokenizer(str, "L", true); The last parameter is a boolean that specifies that delimiters have to be returned too.