如何使用 .NET 以字节缩写形式获得人类可读的文件大小? [英] How do I get a human-readable file size in bytes abbreviation using .NET?

问题描述

如何使用 .NET 获得人类可读的文件大小(以字节为单位缩写)?

How do I get a human-readable file size in bytes abbreviation using .NET?

示例:输入 7,326,629 并显示 6.98 MB

Example: Take input 7,326,629 and display 6.98 MB

推荐答案

这可能不是最有效或最优化的方法，但如果您不熟悉对数数学，它更容易阅读，并且应该足够快大多数情况.

This may not the most efficient or optimized way to do it, but it's easier to read if you are not familiar with log maths, and should be fast enough for most scenarios.

string[] sizes = { "B", "KB", "MB", "GB", "TB" };
double len = new FileInfo(filename).Length;
int order = 0;
while (len >= 1024 && order < sizes.Length - 1) {
    order++;
    len = len/1024;
}

// Adjust the format string to your preferences. For example "{0:0.#}{1}" would
// show a single decimal place, and no space.
string result = String.Format("{0:0.##} {1}", len, sizes[order]);

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