如何在循环中写入时动态更改文件名？ [英] How to dynamically change filename while writing in a loop?

问题描述

我想将文件名发送到函数以在文件上写入一些数据，在第一次迭代中将一些内容写入名为file0.txt的文件，第二次迭代file1.txt等等，

该怎么办？



我的尝试：

I want to send the filename to function to write some data on file, in the first iteration write some content into a file named file0.txt, second iteration file1.txt and so on,
how can do that?

What I have tried:

void main(){
writetotxtfile(str,"file/*how can make this part dynamically change */ ");

}

推荐答案

char* base = "file";
char filename[256];
int index;
for (index = 0; index < uppervalue; index++)
{
    sprintf(filename, "%s%d.txt", base, index);
    writetotxtfile(filename, other parameters);
}

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