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                (尷尬,沒有保存) 1. MySQL數據庫:理解成一張表格,里面有唯一標志性ID。 數據庫的操作步驟:連接,選擇,返回(return) 1. 相互對應性: 1. 產生判斷的條件:出現不同條件的情況,是通過具備判斷的條件。 對數值進行判斷:switch ~~~ {switch name="變量" } {case value="值1" break="0或1"}輸出內容1{/case} {case value="值2"}輸出內容2{/case} {default /}默認情況 {/switch} ~~~~~~ 對存在條件進行判斷(_isset) 明白面向的對象是:圖片,字符串,數值 了解什么是返回的數據:return,
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