AI代码解释 voidreaddatafromfileLBL(){ifstreamfin("data.txt");constintLINE_LENGTH=100;char str[LINE_LENGTH];while(fin.getline(str,LINE_LENGTH)){cout<<"Read from file: "<<str<<endl;//要输出4次}} 程序结果: 3.读取方式:逐行读取,
EPOLL_CTL_ADD,connfd,&ev); } else if(events[i].events & EPOLLIN) { cout<<"EPOLLIN"<<endl; if((sockfd = events[i].data.fd)<0) continue; if((n=read(sockfd,line,MAXLINE))<0) { if(errno == ECONNRESET) { close(sockfd); events[i].data.fd = -1; } else cout<<"readline...
In this program, we are writing characters (by taking input from the keyboard) to the file until new line is not pressed and reading, printing the file. #include<stdio.h>intmain(){FILE*fp;/* file pointer*/charfName[20];charch;printf("\nEnter file name to create :");scanf...
* _lbfsize is -_bf._size, else _lbfsize is 0* if _flags&__SRD, _w is 0* if _flags&__SWR, _r is 0** This ensures that the getc and putcmacros(or inline functions) never* try to write or read from a file that is in `read' or `write'...
int fread(void *buf, int read_size, int read_count, FILE *fp); 其中buf为任意已经分配的内存空间,read_size为每次读取的空间大小,read_count为读取read_size大小空间的次数,也就是fread是分多次读取文件,每次读read_size个字节,反复读取read_count次,所以buf的大小至少为read_size*read_count字节,而且fread...
1,/*Copy this file as "lv_port_fs.h" and set this value to "1" to enable content*/,.c文件类似 2,然后在.h文件申明初始化函数,这个文件类容就这么多啦。 3,.c文件,设置sd卡的名字,应该算是 4,.c文件,这个结构体定义的话,直接使用ff.h里面的变量,如下一段代码所示: ...
Dockerfile Use uv to manage Python dependencies, add Ubuntu 24.04 CI test. (#5047) May 20, 2025 LICENSE Move debian build scripts to dedicated folder. (#2730) Apr 13, 2021 README.md Use uv to manage Python dependencies, add Ubuntu 24.04 CI test. (#5047) ...
library formatted input utilities. Multiple functions are provided for different input sources likescanfto read fromstdin,sscanfto read from the character string, andfscanfto read from theFILEpointer stream. The latter can be used to read the regular file line by line and store them in the ...
向流写一个字符,原型是int fputc(int c, FILE *stream); 成功返回这个字符,失败返回EOF。 例:fputc(''X'',fp); 4.fgetc() 从流中读一个字符,原型是int fputc(FILE *stream); 成功返回这个字符,失败返回EOF。 例:char ch1=fgetc(fp); 5. fseek() ...
当缓冲区为行缓冲区时, 一个换行符(newline)被写入 Whenever an input operation on any stream actually reads data from its file. 对于一个输出流, 可以调用fflush进行显示的刷新缓冲区, 即将缓冲区的内容写入到文件中, 但是对于一个输入流使用fflush函数的效果没有定义. 下面是函数原型: 代码语言:javascript...