定義:?
????類的加載是指將.class文件中的二進(jìn)制數(shù)據(jù)讀入內(nèi)存
????放在運(yùn)行時(shí)數(shù)據(jù)區(qū)的方法區(qū)
? ? 然后在堆區(qū)創(chuàng)建java.lang.Class對(duì)象寻仗,用來(lái)封裝類在方法區(qū)內(nèi)的數(shù)據(jù)結(jié)構(gòu)
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