Question

我正在学习C以及它在文本文件中读取的任务之一，并让它输出格式化的文本文件。最终产品应如下所示：

1)"I must not fear.[4,17]
2)Fear is the mind-killer.[4,24]
3)Fear is the little-death that brings total obliteration.[8,56]
4)I will face my fear.[5,20]
.
.
.
13)oneWord_allAlone[1,16]
13 lines, 94 words, 481 characters
Line 10 has the most words (16)
Line 7 has the most characters (68)

我已经编写了代码并且可以得到一些紧密的东西，但信息乱序且变量错误，它会切断每个句子的第一个字母。我明白了：

I must not fear0.) 
[4, 16]
ear is the mind-killer.0) 
[7 39]
ear is the little-death that brings total obliteration.0) 
[14 92]
.
.
.
neWord_allAlone1)
[86 470] 
1 lines, 20360 words, 110685 characters
line 1 has the most words with (86)
line 1 has the most characters with 470)

在哪里获得110685个字符超出我的范围。那么，说到这里，我做错了什么？据我所知，我已经正确设置了所有变量，但输出顺序错误，第一个字符被切断，并且计数很少。任何帮助深表感谢！这是我的代码：

#include <stdio.h>

#define IN 1
#define OUT 0

void main() {

  int c = 0;
  int numChars = 0;
  int numWords = 0;
  int numLines = 0;
  int state = OUT;
  int test = 0;
  int largestNumChars = 0;
  int largestNumWords = 0;
  int totalNumChars = 0; 
  int totalNumWords = 0;
  int lineWithMostChars = 0;
  int lineWithMostWords = 0;

  FILE *doesthiswork = fopen("testWords.in", "r");
  while ((test = fgetc(doesthiswork)) != EOF) {
    if ( test == '\n') {
            ++numLines;
    }
    while ((test = fgetc(doesthiswork)) != '\n') {    
        ++numChars;
        putchar(test);   
        if (test == ' ' || test == '\t' || test == '\n') {      
          state = OUT;
        } else if (state == OUT){
          state = IN;
          ++numWords;          
        }
        totalNumWords = totalNumWords + numWords;
        totalNumChars = totalNumChars + numChars;    
     }

     if (largestNumChars == 0)  {
       largestNumChars = numChars;
     } else if (largestNumChars < numChars) {
       largestNumChars = numChars;
       lineWithMostChars = numLines;
     } else  {
       largestNumChars = largestNumChars;
       lineWithMostChars = lineWithMostChars;
     }

     if (largestNumWords == 0)  {
       largestNumWords = numWords;
       lineWithMostWords = numLines;
     } else if (largestNumWords < numWords) {
       largestNumWords = numWords;
       lineWithMostWords = lineWithMostWords;
     } else {
       largestNumWords = largestNumWords;
     }

     printf("%d) %c [%d %d]\n",numLines, test, numWords, numChars);
   }

   printf("%d lines, %d words, %d characters\n", 
     numLines, totalNumWords, totalNumChars);
   printf("line %d has the most words with (%d)\n", 
     lineWithMostWords, largestNumWords);
   printf("line %d has the most characters with (%d)\n", 
     lineWithMostChars, largestNumChars);  
}

Answer 1

嗯，最初的信件是你在第一次fgetc电话中读取它们的时间，但是你不会像第二次putchar那样读取它们。 {1}}致电。

并且fgetc非常大，因为您会定期向其添加totalNumChars，但您无法将numChars重置为零。

我希望这会有所帮助。找到并压制这些错误很有趣！

Answer 2

首先，你putchar()行号前面的字母。然后，在第二个while中，test始终存储'\n'，因此[numWords, numChars]始终位于字母的下一行。正如@aecolley所说，numWords，numChars应该重新归零。

lineWithMostWords = lineWithMostWords;

应该是

 lineWithMostWords = numLines;

这是我的代码，也许可以帮到你。

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

#define IN      1
#define OUT     0
#define MAXLINE 500

void main()
{
    int numChars = 0;
    int numWords = 0;
    int numLines = 0;
    int state = OUT;
    int test = 0;
    int largestNumChars = 0;
    int largestNumWords = 0;
    int totalNumChars = 0;
    int totalNumWords = 0;
    int lineWithMostChars = 0;
    int lineWithMostWords = 0;
    char line[MAXLINE+1], *lineTemp;
    int lineLen;

    FILE *doesthiswork;
    doesthiswork = fopen("testWords.in", "r");
    while (fgets(line, MAXLINE, doesthiswork) != NULL)
    {
        numChars = 0;
        numWords = 0;
        lineLen = strlen(line);
        line[lineLen - 1] = '\0';
        lineTemp = line;
        state = OUT;

        ++numLines;

        while ((test = *lineTemp++) != '\0')
        {
            ++numChars;

            if (test == ' ' || test == '\t')
            {
                state = OUT;
            }
            else if (state == OUT){
                state = IN;
                ++numWords;
            }
        }

        totalNumWords = totalNumWords + numWords;
        totalNumChars = totalNumChars + numChars;

        if (largestNumChars == 0)
        {
            largestNumChars = numChars;
         }
        else if (largestNumChars < numChars)
        {
            largestNumChars = numChars;
            lineWithMostChars = numLines;
        }

        if (largestNumWords == 0)
        {
            largestNumWords = numWords;
            lineWithMostWords = numLines;
        }
        else if (largestNumWords < numWords)
        {
            largestNumWords = numWords;
            lineWithMostWords = numLines;
        }

        printf("%d) %s [%d %d]\n",numLines, line, numWords, numChars);
    }
    printf("%d lines, %d words, %d characters\n", numLines, totalNumWords, totalNumChars);
    printf("line %d has the most words with (%d)\n", lineWithMostWords, largestNumWords);
    printf("line %d has the most characters with (%d)\n", lineWithMostChars,     largestNumChars);
}

在ansi c中读取和格式化文本文件

2 个答案: