题
请参阅这一段代码:
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main() {
int i = 0;
FILE *fp;
for(i = 0; i < 100; i++) {
fp = fopen("/*what should go here??*/","w");
//I need to create files with names: file0.txt, file1.txt, file2.txt etc
//i.e. file{i}.txt
}
}
解决方案
for(i = 0; i < 100; i++) {
char filename[sizeof "file100.txt"];
sprintf(filename, "file%03d.txt", i);
fp = fopen(filename,"w");
}
其他提示
使用与snprintf()
"file%d.txt" and
i`以生成文件名。
看到snprintf
。
char szFileName[255] = {0};
for(i = 0; i < 100; i++)
{
sprintf(szFileName, "File%d.txt", i);
fp = fopen(szFileName,"w");
}
此应该工作:
for(i = 0; i < 100; i++) {
char name[12];
sprintf(name, "file%d.txt", i);
fp = fopen(name, "w");
}
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