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                ## 使用實例 ``` switch (province) { case "anhui": break; case "jiangsu": break; default: } ``` ## 語法 ``` switch(表達式){ case 選項值 } ``` #### 說明 * JDK 7 之前版本表達式(或變量)的值可以是: byte、short 、int 或char 類型,JDK 7 之后也支持String類型 * break 語句跳出switch語句, break 是非必須的 * 可以包含一個default 分支, 位置不限定, 但一般是放最后,放最后不需要加break
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