短語(yǔ)詞組短語(yǔ)weak external reference 弱外部引用Weak Global Reference 弱全侷引用SoftReference or weak reference 軟引用或弱引用Weak Reference Objects 弱引用對(duì)象short weak reference 短弱引用long weak reference 長(zhǎng)弱引用 返回 weak reference