首页 \ 问答 \ 重定向来自txt文件的输入并将其存储在动态创建的数组中并对其进行comap(Redirecting input from txt file and storing it in a dynamically created array and comapring it)

重定向来自txt文件的输入并将其存储在动态创建的数组中并对其进行comap(Redirecting input from txt file and storing it in a dynamically created array and comapring it)

我是C的新手,我今天在这里发帖,以便了解如何修复我已经编写的代码的语法,以便它可以成功地比较argv和我已经创建的数组。 这是我已经处理过的代码,但由于比较语句而无法编译。

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[])
{
    int c = 0;
    int *array;
    char *chant;
    while((c=getchar())!=EOF)
    {
        array[0]=c;

    }
    chant = strstr(argv[1], array[0]); \\ That is my problem, won't compile here.
    if(chant==NULL)
    printf("false\n");
    else
    printf("true\n");

    return 0;
} 

这是我想要的输出在运行时的样子:

./a.out paul <beatles.txt

真正

基本上,argv [1]将包含字符串paul,然后当我在其中引导名为paul的beatles的文本文件时,我的while循环将每个字符存储到数组中。 从那里我希望我的strstr工作,然后导致程序进入else语句并打印true。

对不起,但我对C的有限知识应该归咎于此,我知道argv [1]和array [0]之间的比较不起作用,但我无法找出另一种比较它的聪明方法。 如果我是正确的,argv是一个指针数组的数组......非常奇怪。

编辑;

我用这个修复了while循环,

array = (char *) malloc(15);
while((c=getchar())!=EOF)
{
    array[i]=c;
    i++;
} 

I am new to C and I am posting here today to get some insight as to how to fix my syntax of my already written code so that it can successfully compare argv and my already created array. Here is my code that I have worked on, but won't compile because of the comparing statement.

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[])
{
    int c = 0;
    int *array;
    char *chant;
    while((c=getchar())!=EOF)
    {
        array[0]=c;

    }
    chant = strstr(argv[1], array[0]); \\ That is my problem, won't compile here.
    if(chant==NULL)
    printf("false\n");
    else
    printf("true\n");

    return 0;
} 

Here's what I want my output to look like when ran:

./a.out paul < beatles.txt

true

Basically, the argv[1] will contain the string paul and then when I direct a text file of the beatles with the name paul in it, my while loop will store each character into the array. From there I want my strstr to work, which then results in the program going to the else statement and printing true.

Sorry, but my limited knowledge of C is to blame here and i know that the comparison between argv[1] and array[0] won't work, but I can't figure out another clever way of comparing it. If i am correct, argv is an array of an array of pointers...Very weird .

EDIT;

I fixed the while loop with this,

array = (char *) malloc(15);
while((c=getchar())!=EOF)
{
    array[i]=c;
    i++;
} 

原文:https://stackoverflow.com/questions/26322047
更新时间:2023-09-06 09:09

最满意答案

阅读本文 - 自定义依赖项属性

就像是 -

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{
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Read on this article - Custom Dependency Properties

Something like -

public static readonly DependencyProperty MyPersonValueProperty = 
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private static void OnPersonChanged(DependencyObject d, 
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{
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}

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