如何生成一定长度的字符串插入文件以满足文件大小的要求?

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.I have a requirement to test some load issues w