No null. Mog uses ?T (Optional) for values that might be absent — ?int, ?string (see Chapter 10). The type system distinguishes between “definitely has a value” and “might not have a value.” You cannot accidentally dereference something that does not exist.
Use as to cast between numeric types:
。业内人士推荐新收录的资料作为进阶阅读
Country’s airspace is closed for duration of war，推荐阅读新收录的资料获取更多信息
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더버지 기자가 제공한 14자리 일련번호만으로 해당 기기가 거실을 청소 중이며 배터리가 약 80% 남아 있다는 정보가 확인되는 시연도 이뤄졌다.