gitee:https://gitee.com/coNgY1/word-count/
1.功能分析
WordCount的需求可以概括为：对程序设计语言源文件统计字符数、单词数、行数，统计结果以指定格式输出到默认文件中，以及其他扩展功能，并能够快速地处理多个文件。可执行程序命名为：wc.exe，该程序处理用户需求的模式为：
wc.exe [parameter] [input_file_name]
2.思路C++来写，一个CFileRecord类来统计。
3.代码：
#include<iostream> #include<fstream> #include<string> #include<sstream> #include<algorithm> #include<vector> using namespace std; class CFileRecord { private: int m_Wordnum; int m_Charnum; int m_Linenum; string m_record; const string OUT_FILE = "result.txt"; ifstream input; ofstream out; public: vector<string> m_mode; public: CFileRecord(string szFile) :m_Wordnum(0), m_Charnum(0), m_Linenum(0), input(szFile), out(OUT_FILE){ if (input.is_open() && out.is_open()) { string szLine; while (getline(input, szLine)) { m_Linenum++; m_Charnum += szLine.size(); istringstream record(szLine); string word; while (record >> word) { m_Wordnum += count(begin(word), end(word), ',') + 1; } } } m_record = "字符数 : " + to_string(m_Charnum) + "\r\n" +"单词数 : " + to_string(m_Wordnum) + "\r\n" +"行数 : " + to_string(m_Linenum) + "\r\n"; out << m_record; } ~CFileRecord() { if(input.is_open()) input.close(); if(out.is_open()) out.close(); }; int GetCharnum() { return m_Charnum; } int GetLinenum() { return m_Linenum; } int GetWordnum() { return m_Wordnum; } void OutRecord(string szFile) { ofstream out(szFile,ostream::ate); if (out.is_open()) { for (auto iter = m_mode.begin(); iter != m_mode.end(); iter++) { if (*iter == "-c") out << "字符数 : " + to_string(m_Charnum) + "\r\n"; else if (*iter == "-l") out << "行数 : " + to_string(m_Linenum) + "\r\n"; else if (*iter == "-w") out << "单词数 : " + to_string(m_Wordnum) + "\r\n"; } out.close(); } } }; int main(int argc,char **argv) { string szInfile; string mode; if (argc % 2 == 0) { //cout << "wrong param!" << endl;; return 1; } szInfile = argv[2]; CFileRecord CRecord(szInfile); for (int i = 1; i < argc; i += 2) { mode = argv[i]; szInfile = argv[i+1]; CRecord.m_mode.push_back(mode); if (mode == "-c") cout << szInfile << ",字符数: " << CRecord.GetCharnum() << endl; else if (mode == "-l") cout << szInfile << ",行数: " << CRecord.GetLinenum() << endl; else if (mode == "-w") cout << szInfile << ",单词数: " << CRecord.GetWordnum() << endl; else if (mode == "-o") CRecord.OutRecord(szInfile); } return 0; }
四.测试
转载于:https://www.cnblogs.com/coNgY1/p/9696626.html
