當(dāng)用watch監(jiān)聽(tīng)一個(gè)ref對(duì)象時(shí)

當(dāng)用watch監(jiān)聽(tīng)多個(gè)ref對(duì)象時(shí)

當(dāng)用watch監(jiān)聽(tīng)reactive對(duì)象時(shí)（強(qiáng)制開(kāi)啟深度監(jiān)聽(tīng)，并且舊的值無(wú)法獲?。?/span>

當(dāng)用watch監(jiān)聽(tīng)reactive對(duì)象里的某一個(gè)普通屬性時(shí)，要以箭頭函數(shù)返回值的方式告知

當(dāng)用watch監(jiān)聽(tīng)reactive對(duì)象里的多個(gè)普通屬性時(shí)

當(dāng)用watch監(jiān)聽(tīng)reactive對(duì)象里的某一個(gè)對(duì)象屬性時(shí)，我們需要手動(dòng)開(kāi)啟深度監(jiān)聽(tīng)才可以

下面為另一種總結(jié)方式