fgets()在字符串中包含新行 [英] fgets() includes new line in string

问题描述

我从文档中提取了单词，并将所有单词打印在屏幕上，但是在每个单词打印之后，都有一个空白行.如何避免读取新行或将新行添加到字符串中?

I get the words from my document extracted and all are printed on screen, but after each word printed there is a blank line. How can I avoid reading or adding this new line to the string?

int main(void) {
    FILE *f;
    f = ("words", "r");
    char string[100];
    while (fgets(string, 100, f)) {
         printf("%s", string);
    }
}

此代码不是复制粘贴的，因此我本可以忘记一些小片段，但应该可以工作.在words.txt中，我每行有一个单词.我的程序将它们全部打印到屏幕上，但是在每个单词之后添加新行.我不希望它添加新行或空格.因此，如果txt的一行上有 Hello ，而下一行是 Bye ，则我希望它打印 HelloBye .最终程序的目的不是打印字符串，而是将字符串用于其他用途，因此我确实需要一个字符串，该字符串的末尾或换行符必须是不带空格的文本.

This code was not copy pasted, so I could have forgotten tiny pieces but should work. In words.txt I have one word on each line. My program prints them all to screen, but adds a new line after each word. I do not want it to add a new line, or a space. So if the txt had Hello on one line and Bye on the next line, I want it to print HelloBye. The objective of the final program will not be to print the string, it will be to use the string for something else, so I do need a string that only has the text without spaces at the end or new lines.

推荐答案

尝试一下.

int main()
{
    FILE *f;
    f = ("words", "r");
    char string[100];
    while (fgets(string, 100, f))
    {
        char * message = strtok(string, "\n");
        printf("%s", message);
    }
}

strtok 将字符串标记为您的消息， \ n . fgets 将捕获 \ n 令牌

strtok tokenizes the string into your message, \n. fgets will capture the \n token

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