nullable

常见例句

• Nullable types are a special case of generic types.
  可为Null的类型是泛型类型的特例。
• A SUM function that references a nullable expression.
  引用可为空表达式的SUM函数。
• Tables A & B both have indexes on the nullable IND_COL column.
  表A和B都在可空列IND_COL上有索引。
• Reset the nullable elements before new data is added to the bean.
  重置空要素新的数据之前添加到豆。
• The Nullable class provides complementary support for the Nullable structure.
  Nullable类为Nullable结构提供补充支持。
• Assign a value to a nullable type just as you would for an ordinary value type, for example int?
  为可以为null的类型赋值的方法与为一般值类型赋值的方法相同,如int?
返回 nullable