fopen()opens a file for reading or writing, and returns a pointer to a file stream. It accepts two arguments: the first is the file name (optionally including the file path) of the file to be opened; the second is the access mode, which can be one of six settings. The access mode ...
在读写文件之前,需要打开文件使用的函数是( )。 A. read B. fopen C. open D. CFile 相关知识点: 试题来源: 解析 C 正确答案:C 解析:Python通过open( )函数打开一个文件,并返回一个操作这个文件的变量,语法:<变量名>=open(<文件路径及文件名>,<打开模式>)。本题选C选项。
#include <stdio.h> #include <wchar.h> #include <locale.h> int main() { // 设置当前 C 本地环境为用户的本地环境 setlocale(LC_ALL, ""); FILE *file = fopen("example.txt", "w"); if (file == NULL) { wprintf(L"Failed to open file for writing\n"); return 1; } // 使用 fp...
If the file does not exist, it will be created. a+Open for both reading and appending.If the file does not exist, it will be created. ab+Open for both reading and appending in binary mode.If the file does not exist, it will be created. ...
fclose(file_ptr); return(0); } In this example, we open a file “file1.txt” and then we use the fprintf functions to write into this file. Note that we have to pass the file handle “file_ptr” to this function. That’s how it knows which file to write into. The strings in...
写入字符串 int fputs( const char *string, FILE *stream ); string:要写入的字符串 stream:一次读取的大小 例: 代码语言:javascript 复制 char buf[10] = { 0 }; FILE *pf = fopen("file.txt", "r"); if (pf == NULL) { perror("open file for reading"); exit(0); } fgets(buf, 9, ...
百度试题 题目打开文件对文件进行读写,操作完成后应该调用( )方法关闭文件,以释放资源。 A.openB.closeC.readD.write相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目以只读模式打开文件 "" 的正确方法是A. fopen("","r "); B. open(""); C. open("","read"); D. fopen("","r"); 相关知识点: 试题来源: 解析 答案:D 反馈 收藏
1下列语句用于打开一个顺序文件Open"C:\MyFile.txt"For OutPut,但该语句的一个重要错误是没有( )。 A.指定打开方式B.指定文件号C.指定打开文件名D.指定文件类型 2下列语句用于打开一个顺序文件Open "C:\MyFile.txt" For OutPut,但该语句的一个重要错误是没有( )。 A.指定打开方式B.指定文件号C.指定...
百度试题 题目下面哪个函数可以打开一个文件,以对文件进行读和写操作?() A. fget() B. file_open() C. fopen() D. open_file() 相关知识点: 试题来源: 解析 C.fopen() 反馈 收藏