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package com.mrcd.mmat.util;

/**
 * 
 Description: 单位转换
 * 

 * 

 * 
 Author:      chenlin
 * 
 Date:        10/22/21
 */
public class UnitUtil {

    public static Long kbToBytes(Long num){
        return num << 10;
    }

    public static Long mbToBytes(Long num){
        return num << 20;
    }

    public static Long byteToKB(Long num){
        return num >> 10;
    }

    public static Long byteToMB(Long num){
        return num >> 20;
    }

    public static Long KBToMB(Long num){
        return num >> 10;
    }

    public static Long KBToGb(Long num){
        return num >> 20;
    }

    public static Long mbToKB(Long num){
        return num << 10;
    }

    public static String kB2MStdOut(long num) {
        if(num > 1024){
            return KBToMB(num)+" MB\n";
        }else{
            return num + " KB\n";
        }
    }

    public static String b2MStdOut(long num) {
        if(num > kbToBytes(1024L)){
            return byteToMB(num) + " MB\n";
        }else{
            return byteToKB(num) + " KB\n";
        }
    }
}