LocalDateTime计算两个时间差

要计算两个LocalDateTime之间的时间差，可以使用Duration类。下面是一个示例代码：

import java.time.Duration;
import java.time.LocalDateTime;

public class Test {
    public static void main(String[] args) {
        LocalDateTime dateTime1 = LocalDateTime.of(2022, 1, 1, 10, 0);
        LocalDateTime dateTime2 = LocalDateTime.of(2022, 1, 1, 12, 30);

        Duration duration = Duration.between(dateTime1, dateTime2);
        long hours = duration.toHours();
        long minutes = duration.toMinutes() % 60;

        System.out.println("时间差：" + hours + "小时 " + minutes + "分钟");
    }
}

在这个例子中，我们使用`Duration.between()`方法计算了`dateTime1`和`dateTime2`之间的时间差。然后，我们使用`toHours()`方法获取小时数，<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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