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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                >[danger] update() 更新數據 + 假設 `id` 為主鍵字段,以下操作可以更新 ``` // $table 表名 $data 更新的數據 // Db::table(string $table)->update(array $data); // 返回影響行數,沒有修改任何數據或當前更新條件下無數據返回 0 Db::table('admin')->update(['id' => 1, 'username' => '張三']); ``` + 如果更新的數據中沒有主鍵字段,將提示以下信息 ![](https://img.kancloud.cn/fd/ce/fdcea73d16babacaa3268d2d09c3449b_897x613.png)
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