C语言 如何通过 Windows 终端发送 EOF
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How to send EOF via Windows terminal
提问by 804b18f832fb419fb142
I'm trying to comprehend Example 1.9 from the K&R book, but I don't get how to send EOF. Some sources mentioned Ctr+Z, but that simply terminates the program. I somehow managed to send EOF with a combination of Enter and Ctrl+Z and maybe Ctrl+V, but I can't reproduce it.
我试图理解 K&R 书中的示例 1.9，但我不知道如何发送 EOF。一些消息来源提到了 Ctr+Z，但这只是终止了程序。我以某种方式设法通过 Enter 和 Ctrl+Z 以及 Ctrl+V 的组合发送 EOF，但我无法重现它。
#include <stdio.h>
#define MAXLINE 1000
main()
{
int len;
int max;
char line[MAXLINE];
char save[MAXLINE];
max = 0;
while((len = getline_my(line, MAXLINE)) > 0)
if(len > max) {
max = len;
copy(line, save);
}
if(max > 0)
printf("%s", save);
}
getline_my(s, lim)
char s[];
int lim;
{
int c, i;
for(i=0; i < lim-1 && (c = getchar()) != EOF && c != '\n'; i++)// As long as the condition is fulfilled
s[i] = c;
if (c == '\n') {
s[i] = c;
i++;
}
s[i] = 'int main(){
char ch[100];
scanf("%[^EOF]",ch);
printf("\nthe string is:\n%s\n",ch);
fflush(stdin);
return 0;
}
';
return(i);
}
copy(s1, s2)
char s1[];
char s2[];
{
int i;
i = 0;
while((s2[i] = s1[i]) != '##代码##')
i++;
}
回答by xagyg
You can simulate EOF with CTRL+D(for *nix) or CTRL+Z(for Windows) from command line.
您可以从命令行使用CTRL+D(for *nix) 或CTRL+Z(for Windows)模拟 EOF 。
回答by mauriceShun
In widows, when you are ready to complete the input, press the Enterkey and then press Ctrl+Zand then Enterto complete the input.
在widows中，当您准备好完成输入时，按Enter键再按Ctrl+Z然后Enter完成输入。
回答by crajun
In the end, it can't be done easily on Windows given the simple K&R code which was meant for Unix-like systems. You can send '^Z^M' (Ctrl-Z and then Enter) to send Windows equivalent of EOF but the char 'EOF' you are checking for in this C program is not the same.
最后，鉴于适用于类 Unix 系统的简单 K&R 代码，在 Windows 上无法轻松完成。您可以发送 '^Z^M'（Ctrl-Z 然后回车）来发送等效于 EOF 的 Windows，但是您在这个 C 程序中检查的字符 'EOF' 是不一样的。
Short answer: you can't.
简短的回答：你不能。
