1、The expression may be a null value if the parameter is nullable.
如果參數(shù)可為空值，則表達(dá)式可能為空值。

2、What if someone inadvertently passes in a null value for the Class parameter?
如果有人不經(jīng)意地為Class參數(shù)傳入一個(gè)null值會(huì)怎么樣呢？

3、If no match is found within the input, a null value is returned.
如果在輸入中未找到匹配項(xiàng)，則返回空值。

null value翻譯