我比较迟钝,到现在才知道结构类型放在字典作为键时,效率是不好的,最好重载GetHashCode和Equals,那效率究竟差异有多大呢?我写了一个测试程序。
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ResourceServiceKey是重载了这两个方法的,共花了0.5秒左右,而ResourceServiceKey2没有重载,共花了22秒,差异还是挺大的。反编译ValueType(结构的基础类型),看了代码,才发现,这样不慢才怪呢。
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我比较迟钝,到现在才知道结构类型放在字典作为键时,效率是不好的,最好重载GetHashCode和Equals,那效率究竟差异有多大呢?我写了一个测试程序。
ResourceServiceKey是重载了这两个方法的,共花了0.5秒左右,而ResourceServiceKey2没有重载,共花了22秒,差异还是挺大的。反编译ValueType(结构的基础类型),看了代码,才发现,这样不慢才怪呢。