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<h1>Best-Practice</h1>
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<li><a href="#_泛型">1. 泛型</a></li>
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<h2 id="_泛型"><a class="anchor" href="#_泛型"></a>1. 泛型</h2>
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<dt class="hdlist1">使用场景</dt>
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<p>属性不能使用具体类型，也不能使用接口类型或者父类，因为使用接口或父类就无法再调用实现类的方法除非进行类型强转</p>
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<dt class="hdlist1">限定类型参数</dt>
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<p>泛型方法中参数是集合或者迭代器的类型要注意使用extends或super限定类型，否则泛型的子类无法作为参数，遵循PECS(producer-extends，consumer-super)原则</p>
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Last updated 2024-03-18 05:44:42 UTC
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