C++ÖÐÊÇͨ¹ýÁ÷µÄ·½Ê½À´·ÃÎÊÎļþµÄ£¬±ÈÈç˵Óï¾ä ifstream in("str.txt",ios::in); £¬¾Í´ò¿ªÁËÎļþstr.txt¡£ÎÒÃÇ¿ÉÒÔͨ¹ýin.read()À´¶ÁÈ¡Á÷in(Ò²¾ÍÊÇÎļþstr.txt)ÖеÄÊý¾Ý¡£ÏÖÔÚÎÊÌâÀ´ÁË£ºÎÒÃÇÔõôÅжϺÎʱ¶Áµ½ÁËÕâ¸öÎļþµÄĩβÄØ£¿ ÔÚC++ÖУ¬ÎļþµÄ½áÊø±êÖ¾ÊÇEOF¡ª¡ª¹ËÃû˼Ò壬End Of File¡£Ò²¾ÍÊÇ˵£¬ÔÚÎļþµÄij¸ö×Ö½ÚbºóÃæ¼ÓÈëÒ»¸öEOF£¬¾Í±íʾÕâ¸ö×Ö½Úb¾ÍÊǸÃÎļþµÄ×îºóÒ»¸ö×Ö½ÚÁË¡£ÕâÀï˳±ã˵һ¾ä£¬EOFÕ¼Ò»¸ö×ֽڵĴóС£¬ÆäֵΪ-1¡£ »¹ÊǾٸöÀý×Ó°É£¡¡ª¡ªÔËÐл·¾³ÎªMicrosoft Visual C++ 2005¡£ #include <fstream> #include <iostream> using namespace std;
int main()...{ char c=¡¯a¡¯; ofstream out("str.txt",ios::out); for(int i=0;i<10;i++,c++) out.write(&c,sizeof(char)); out.close();
int i=0; ifstream in("str.txt",ios::in); while(in)...{ c=in.get(); cout<<c; i++; } cout<<i;
cin.get(); } ÔÚin¶ÁÍê×Ö·û¡¯j¡¯µÄʱºò£¬ÆäʵÒѾµ½´ïÎļþµÄĩβÁË£¬µ«´ËʱÁ÷inµÄ״̬»¹ÊÇgood£¬Ò²¾ÍÊÇ˵»¹¿ÉÒÔ¼ÌÐø¶ÁÈëÏÂÒ»¸ö×Ö½Ú¡£¶øµ±in¼ÌÐøÍù϶ÁµÄʱºò£¬¾Í»á¶Áµ½EOFÁË£¬µ±¶ÁÍêEOF²¢¸³Öµ¸øcºó£¬Á÷inµÄ״̬¾Í±ä³ÉÁËeofbit£¬²»¿ÉÔÙ¶Á£¬ÔÚÌõ¼þÅжÏÓï¾äÖÐÁ÷inÒ²¾Í³ÉÁËfalseÁË¡£ËùÒÔÕæÕý¶ÁÈëµÄ×Ö½ÚÊýÆäʵÊÇ11£¬¶ø²»ÊÇÎļþµÄ³¤¶È10¡£ ¶øÎļþµÄÊä³öΪ abcdefghijÿ11 £¬ÓÃUltraEdit´ò¿ª£¬Çл»µ½16½øÖÆģʽÏ¿ÉÒÔ¿´µ½£¬jºÍ11ÖмäµÄÄǸö¿Õ¸ñµÄASCIIÂëΪFF£¬Ò²¾ÍÊÇ2½øÖƵÄ11111111£¬¾ÍÊÇ-1µÄ²¹Âë¡£
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