int i=33;
char str[1222];
sprintf(str,"%s%d%s", "C:\\Users\\Administrator\\Desktop\\ff\\feats",i,".dat");
这样str就变成 C:\\Users\\Administrator\\Desktop\\ff\\feats\\33.dat
int i=33;
char str[1222];
sprintf(str,"%s%d%s", "C:\\Users\\Administrator\\Desktop\\ff\\feats",i,".dat");
这样str就变成 C:\\Users\\Administrator\\Desktop\\ff\\feats\\33.dat