關(guān)于iOS修飾符 首先強(qiáng)調(diào)一下： 強(qiáng)引用：當(dāng)前對(duì)象被其他對(duì)象引用時(shí)倍试，會(huì)執(zhí)行retain操作矩欠，引用計(jì)數(shù)器+1挖息。當(dāng)retainCount=0時(shí)向挖，該對(duì)...