C语言 C puts() 没有换行符
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C puts() without newline
提问by Constantine
I currently have this program that prints a text file on the console, but every line has an extra new line below it. if the text was
我目前有这个程序可以在控制台上打印一个文本文件，但每一行下面都有一个额外的新行。如果文本是
hello world
你好，世界
it would output hello
它会输出你好
world
世界
the code is this
代码是这样的
#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
FILE* fp;
char input[80], ch = 'a';
char key[] = "exit\n";
int q;
fp = fopen("c:\users\kostas\desktop\original.txt", "r+");
while (!feof(fp)) {
fgets(input, 80, fp);
puts(input);
}
fclose(fp);
return 0;
}
采纳答案by dasblinkenlight
回答by Alex North-Keys
Typically one would use fputs() instead of puts() to omit the newline. In your code, the
通常会使用 fputs() 而不是 puts() 来省略换行符。在您的代码中，
puts(input);
would become:
会成为：
fputs(input, stdout);
回答by Ferrarezi
You can also write a custom putsfunction:
您还可以编写自定义puts函数：
#include <stdio.h>
int my_puts(char const s[static 1]) {
for (size_t i = 0; s[i]; ++i)
if (putchar(s[i]) == EOF) return EOF;
return 0;
}
int main() {
my_puts("testing ");
my_puts("C puts() without ");
my_puts("newline");
return 0;
}
Output:
输出：
testing C puts() without newline
