字数计划

Question

所以有两个问题： 1）当我到达我试图计算最低和最高的部分时，所有的＆gt;，＆lt;和=都会在它们下方出现红色曲线并出现错误消息＆＃34;操作数类型不兼容（ ＆＃34; int *＆＃34;和＆＃34; int＆＃34;）＆＃34; 第二个 当我设置断点时，我发现我的文件中的单词甚至没有被放入字符串中，我的所有字符串都是空白的。请帮忙！

#include <iostream>

#include <fstream>
#include <string>
#include <cmath>

using namespace std;

struct numStringOccurrences //this brings the words into the struct as a string form
{
string wordFromFile;
int numOccurrence;
};

int countOccurrences(numStringOccurrences strOcc[], int pos) //this counts how many times the words show up
{
int wordCounts = 0;

for (int i = 0; i < 1000; i++)
{
if (strOcc[i].wordFromFile == strOcc[pos].wordFromFile)
wordCounts++;
}
return wordCounts;
}

int main()
{
string inputFile, wordFromFile;
bool wordFound = false;
string wordArray[10000];
int numOccurrence[10000];
int currentLoc = 0;

cout << "Good day! What is the input file name?: " << endl;
cin >> inputFile;

// Open file.
ifstream file(inputFile.c_str());

how to do 

this counts the highest and lowest word count and outputs it.
for (int i = 0; i < currentLoc; i++)
{
if (wordArray[i] == wordFromFile)
{
numOccurrence[i]++;
wordFound = true;
break;
}


if (wordFound == false)
{
wordArray[currentLoc] = wordFromFile;
currentLoc++;
}
}

// counts the lowest and highest occurrences.
int highest = numOccurrence[0];
int lowest = numOccurrence[0];


for (int count = 0; count < numOccurrence; count++)

{

if (numOccurrence > highest);
{
highest = numOccurrence;
}
if (numOccurrence < lowest)
{
lowest = numOccurrence;
}
//Display the largest and smallest value of the array
cout << "The highest value in the array is: " << highest << "\nThe lowest value in the array is: " << lowest << endl;


system("Pause");
return 0;
}

Answer 1

首先，numOccurence是int*类型，而最高和最低类型是int，默认情况下不具有可比性。这也适用于count。

其次，除了收到用户输入的inputfile之外，您的字符串为空，这不仅是因为您没有从文件中提取任何数据，还因为您的第一个for循环计数器i与currentLoc进行比较，0<0已初始化为0并且从未更改，并且由于get_posts()为false，因此无法输入。

Answer 2

您永远不会从ifstream文件中获取任何内容。你所做的只是在程序和文件之间打开一个流。所有流操作符（＆lt;＆lt;＆lt;＆lt;＆gt;，＆gt;，=，+ =等）将与您的＆＃34;文件一起使用＆＃34;现在变量和一个示例方法是。

字符串字; 而（文件＆gt;＆gt;字） {/ 已经在这里，你可以做所有的检查。你需要的字符串 / }