[KongchangAI]
Unverified50% confidenceSolutionExact time

防御式编程的核心思想是永远不要假设外部输入或依赖对象处于预期状态,实现包括空指针校验、可选链操作符、默认值赋值

1
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50%
Confidence
Long-term
Relevance
9/11/2026
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