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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！
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BigDecimal.valueOf(refundAmount).multiply(BigDecimal.valueOf(100)).intValue() BigDecimal totalFeeBigDecimal = BigDecimal.valueOf(totalFeeDouble); BigDecimal.ROUND_HALF_UP RoundingMode.HALF_UP
一. 基礎
steam
map
Math
數據類型轉化
取值
格式化
Lists
CollectionUtils
判斷空
集合
IDEA快捷鍵
注解
BigDecimal
二. MySQL
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