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Petty CSharp - .?
.?操作符是一种更安全地处理可能为 null 对象的机制,从而避免空指针异常,类似于 TypeScript,Swift 都有类似的机制。 当使用.?时,如果访问对象为 null,则整个表达式为 null 且不抛出异常,否则正常访问。 例子 Copy public class…
CSharp
0 min
6 months ago
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