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将数字四舍五入到 n 个小数位. Java

将数字四舍五入到 n 个小数位. Java

#大批 #java 


使用格式对数字进行四舍五入
Java example code

Java

  Output result 
1.3457
使用 DecimalFormat 对数字进行舍入
Java example code

Java

  Output result 
1.346
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