如何生成一定长度的字符串以插入文件中以满足文件大小标准? [英] How to generate string of a certain length to insert into a file to meet a file size criteria?

问题描述

我需要测试一些有关文件大小的负载问题.我有一个用C#编写的Windows应用程序，它将自动生成文件.我知道每个文件的大小，例如.100KB，以及要生成多少个文件.我需要帮助的是如何生成小于或等于所需文件大小的字符串.

I have a requirement to test some load issues with regards to file size. I have a windows application written in C# which will automatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.

伪代码:

long fileSizeInKB = (1024 * 100); //100KB
int numberOfFiles = 5;

for(var i = 0; i < numberOfFiles - 1; i++) {
     var dataSize = fileSizeInKB;
     var buffer = new byte[dataSize];
     using (var fs = new FileStream(File, FileMode.Create, FileAccess.Write)) {

     }
}

推荐答案

对于字符串，您总是可以使用构造器，该构造器使用 char 并多次重复该字符:

You can always use the a constructor for string which takes a char and a number of times you want that character repeated:

string myString = new string('*', 5000);

这将为您提供5000颗星星的字符串-根据您的需要进行调整.

This gives you a string of 5000 stars - tweak to your needs.

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