C语言写一个文件: 给定一个限制文件大小 超出空间内容则覆盖_百度知 ...答:define FILELEN 1024 void main(){ FILE *fp;unsigned int filelen=0;char buffer[256];int x,y,k;float z;fp=fopen("data.txt","w+");...sprintf(buffer,"%d,%d,%f\n",x,y,z); k=strlen(buffer); filelen+=k;if ( filelen>FILELEN ){ fwrite(buffer,k-(filelen-FILELEN),1,fp...