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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                # if 條件判斷 > 注意`[]`之間要留一個空格哦~ ``` if [ condition ] then # code fi ``` ## else-if 和 else ``` if [ condition ] then # code elif [ condition ] then # elif code else # else code fi ``` ## 三元表達式 ``` if [ condition ]; then echo "成立"; else echo "不成立"; fi ``` ## 比較符號參考 | 符號 | 說明 | 示例 | | --- | --- |--- | | `-eq` `=` `==` | 等于 | `if [ $a -eq $b ]` | | `-ne` | 不等于 | `if [ $a -ne $b ]` | | `-gt` | 大于 | `if [ $a -gt $b ]` | | `-ge` | 大于等于 | `if [ $a -ge $b ]` | | `-lt` |小于 | `if [ $a -lt $b ]` | | `-le` | 小于等于 | `if [ $a -le $b ]` | |`>` `>=` | 大于, 大于等于 | 需要雙括號 `(($a > $b))`| |`<` `<=` | 小于, 小于等于 | 需要雙括號 `(($a <= $b))` |
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