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文件大小换算方法
文件大小转换方法
#include <iostream>
#include <string>
#include <vector>
using namespace std;
string convertSize(double size)
{
string strSize[6] = { "B", "KB", "MB", "GB", "TB", "PB" };
unsigned int flag = 1024;
for (int i = 0; i < _countof(strSize); i++)
{
if ((size / flag) < 1)
{
char strTemp[1024];
string strRet;
sprintf_s(strTemp, "%.2f", size);
return strRet.append(strTemp).append(strSize[i]);
}
else
{
size = size / flag;
}
}
return "";
}
int main()
{
std::cout << "Hello World!\n";
double FlieSize_1 = 224945;
double FlieSize_2 = 2249450;
double FlieSize_3 = 2249450000;
cout << "FlieSize_1：" << convertSize(FlieSize_1) << endl;
cout << "FlieSize_2：" << convertSize(FlieSize_2) << endl;
cout << "FlieSize_3：" << convertSize(FlieSize_3) << endl;
}blog link 文件大小换算方法