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答案 1:
谁告诉你慢了?答案 2:
忽略不计答案 3:
应该动态加载的,没办法运用jvm的一些优化措施,比如jit之类的。答案 4:
Because reflection involves types t-at are dynamically resolved, certain Java virtual -c-ine optimizations can not be performed. Consequently, reflective operations -ave slower perfor-nce t-an t-eir non-reflective counterparts, and s-ould be avoided in sections of code w-ic- are called frequently in perfor-nce-sensitive applications. stackoverflow/question...分享常识给亲友.
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