使用 addObjectsFromArray將數(shù)組添加到可變數(shù)組中是正確的方式
<__NSArrayM 0x1706461b0>(
<MMHResultFrame: 0x1039ea000>,
<MMHResultFrame: 0x104000000>,
<MMHResultFrame: 0x10408b400>,
<MMHResultFrame: 0x103838600>,
<MMHResultFrame: 0x104001800>,
<MMHResultFrame: 0x1040f2600>,
<MMHResultFrame: 0x10414fe00>,
<MMHResultFrame: 0x104191e00>,
<MMHResultFrame: 0x104103800>,
<MMHResultFrame: 0x10407dc00>
)
使用addObject將數(shù)組添加到可變數(shù)組中會出現(xiàn)如下打印信息，因?yàn)闀砑右粋€新的數(shù)組而不是添加元素吭敢，會導(dǎo)致崩潰姻采！
<__NSArrayM 0x170447560>(
<__NSArrayM 0x17084e880>(
<MMHResultFrame: 0x103827600>,
<MMHResultFrame: 0x103947000>,
<MMHResultFrame: 0x10394e200>,
<MMHResultFrame: 0x103a5d600>,
<MMHResultFrame: 0x103a8fe00>,
<MMHResultFrame: 0x1038f5400>,
<MMHResultFrame: 0x10397ac00>,
<MMHResultFrame: 0x103902200>,
<MMHResultFrame: 0x104149000>,
<MMHResultFrame: 0x10390d000>,
<MMHResultFrame: 0x103ab4600>
)
)
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