public static void main(String[] args) {

		String[] array = new String[] { " 2019-12-31 ", "2020 - 01-09 ", "2020- 05 - 01 ", "2022 - 02 - 01",

				" 2025-01 -01" };

		// 请使用map把String[]转换为LocalDate并打印:

		Arrays.stream(array)

		.map((s)->s.replaceAll("\\s+",""))

		.map(LocalDate::parse)

		.forEach(System.out::println);

	}