char* fgets( char* str, int count, FILE* stream ); (C99 前) char* fgets( char* restrict str, int count, FILE* restrict stream ); (C99 起) 从给定文件流读取最多 count - 1 个字符并将它们存储于 str 所指向的字符数组。若文件尾出现或发现换行符则终止分析,后一情况下 str 将包含一个...
char* fgets( char* str, int count, std::FILE* stream ); 从给定文件流读取最多 count - 1 个字符并将它们存储于 str 所指向的字符数组。若文件尾出现或发现换行符则终止分析,后一情况下 str 将包含一个换行符。若读入字节且无错误发生,则紧随写入到 str 的最后一个字符后写入空字符。 参数...
fclose std::fclose From cppreference.com <cpp |io |c Defined in header<cstdio> intfclose(std::FILE*stream); Closes the given file stream. Any unwritten buffered data are flushed to the OS. Any unread buffered data are discarded....
fgets gets a character string from a file stream (function) fputs writes a character string to a file stream (function) getlinegetwlinegetdelimgetwdelim (dynamic memory TR) read from a stream into an automatically resized buffer until delimiter/end of line ...
7.19.8.1 The fread function (p: 301) C89/C90 standard (ISO/IEC 9899:1990): 4.9.8.1 The fread function 参阅 scanffscanfsscanfscanf_sfscanf_ssscanf_s(C11)(C11)(C11) 从stdin、文件流或缓冲区读取格式化输入(函数) fgets 从文件流获取一个字符串(函数) fwrite 写入到文件(函数) fread 的 C++ 文...
(FILE*stream);char*fgets(char*s,intn, FILE*stream);intfputc(intc, FILE*stream);intfputs(constchar*s, FILE*stream);intgetc(FILE*stream);intgetchar();intputc(intc, FILE*stream);intputchar(intc);intputs(constchar*s);intungetc(intc, FILE*stream);size_t fread(void*ptr, size_t size,...
std::map<int,std::string>m;std::mutexmx;externboolshared_flag;// 由 mx 保护intdemo(){if(autoit=m.find(10);it!=m.end())returnit->second.size();if(charbuf[10];std::fgets(buf,10,stdin))m[0]+=buf;if(std::lock_guardlock(mx);shared_flag){unsafe_ping();shared_flag=false;}if...
scanffscanfsscanfscanf_sfscanf_ssscanf_s (C11)(C11)(C11) reads formatted input from stdin, a file stream or a buffer (function) fgets gets a character string from a file stream (function) fwrite writes to a file (function) C++ documentation for fread ...
fpos_t stdinstdoutstderr Functions File access fopenfopen_s (C11) freopenfreopen_s (C11) fwide (C95) setbuf setvbuf fclose fflush Direct input/output fread fwrite Unformatted input/output fgetc fgets fputc fputs getchar getsgets_s (until C11)(C11) ...
gets()函数不进行边界检查,从而此函数对缓冲区溢出攻击极度脆弱。无法安全使用它(除非程序运行的环境限定能出现在stdin上的内容)。因此,此函数在 C99 的第三次勘误中被弃用,而在 C11 标准发布时被移除。推荐的替代品是fgets()和gets_s()。 警告:绝对不要用gets()。