方法壹
1.我們可以通過itunes更新，首先下載安裝itunes。
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2.將ipad連接上電腦，然後我們選擇界面上的更新即可。
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方法二
1.直接通過wifi在ipad上更新，首先我們打開打開設置，打開wifi，選擇通用，點擊裏面的軟件更新。
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2.如果有更新的話，我們就可以看到更新的內容，我們點擊下載安裝更新即可。
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