在反应堆代码中,我可以看到类似
/**
* Create a {@link Tuple1} with the given object.
*
* @param t1 The first value in the tuple.
* @param <T1> The type of the first value.
* @return The new {@link Tuple1}.
*/
public static <T1> Tuple1<T1> of(T1 t1) {
return new Tuple1<T1>(t1);
}
这个'of'关键字是什么?