用c语言如何读取和保存jpg图片文件?答:malloc(sizeof(char)*size);qw =fopen("qw","r");pFile = fopen ( "qwe" , "wb" );printf("%d==\n",pFile);printf("%d\n",size);fread(buffer,1,size,qw);fwrite (buffer , sizeof(byte), size , pFile );fclose (pFile);rename("qwe","Groot.jpg");return 0;} ...
VC6下fread函数只读取一部分数据答:把 fwrite(buf,200*60,1,fp);fread(buff,200*60,1,fpp);改为 fwrite(buf,200*60*4,1,fp);fread(buff,200*60*4,1,fpp);试试。