pex12_9.cpp

数据结构C++代码,经典代码,受益多多,希望大家多多支持

#include <iostream.h>
#include <stdlib.h>
#include <fstream.h>
#pragma hdrstop

#include "array.h"
#include "strclass.h"
#include "wex12_18.h"

void main(void)
{
	Array<String> A(10);
	String str;
	ifstream fin;
	int arraySize = 10, totalLines = 0, i=0;
	
	// open file "strfile.dat"
	fin.open("strfile.dat",ios::in | ios::nocreate);
	if (!fin)
	{
		cerr << "Could not open expfile.dat" << endl;
		exit(1);
	}
	
	// read lines from "strfile.dat" until end of file
	while(str.ReadString(fin,'\r') != -1)
	{
		// count the number of lines in the file
		totalLines++;
		// if the number of lines in the file exceeds the
		// size of A, add 10 strings to A
		if (totalLines > arraySize)
		{
			arraySize += 10;
			A.Resize(arraySize);
		}
		// assign the string to A
		A[i++] = str;
	}
	
	// remove any extra space in A
	A.Resize(totalLines);
	
	// for each string in A, replace all tabs by four spaces
	// and print the new lines
	ExpandTabs(A);
	for(i=0;i < A.ListSize();i++)
		cout << A[i] << endl;
}

/*
<Run>

Included is tabular data containing tabs. The data should
line up when the tabs are replaced by 4 blanks:

    Number        Cost          Profit
    1            $12,000        $2,000
    2            $15,000        $3,000
    3            $18,000        $3,500
    4            $20,000        $4,000
    5            $25,000        $5,000

*/