最近没啥可写的 这里写下做的STL小练习 作为记录
去除指定字符串中的空格
获取文件名并根据名字创建临时文件，以TMP后缀结尾，已经为TMP后缀结尾文件则创建以XXX后缀结尾文件
读取一行输入内容 并将单词翻转打印
// 1111.cpp : 定义控制台应用程序的入口点。
// #include "stdafx.h"
#include <string>
#include <iostream>
#include <algorithm> using namespace std; string strArray[5] = {"prog.dat","mydir","hello.","oops.tmp","end.dat"}; string TrimSpace(string str)
{ string::size_type i; while( (i = str.find(" ")) != string::npos )
{
str.replace(i,1,"");
} string::iterator newEnd = remove(str.begin(),str.end(),' ');
str.erase(newEnd,str.end()); return str;
} void ReversPrintWordInLine()
{
const string delims(" \t,.;");
string line;
while(getline(cin,line))
{
string::size_type begIdx,endIdx;
begIdx = line.find_first_not_of(delims);
while(begIdx != string::npos)
{
endIdx = line.find_first_of(delims,begIdx);
if(endIdx == string::npos)
{
endIdx = line.length();
}
for(int i = endIdx-1;i >= static_cast<int>(begIdx);--i)
{
cout << line[i];
}
cout << ' '; begIdx = line.find_first_not_of(delims,endIdx);
}
cout << endl;
}
} void CreateTmpFilename()
{ string filename,basename,extname,tmpname;
const string suffix("tmp"); for(int i = 0;i < 5;++i)
{
string::size_type idx = strArray[i].find(".");
if(idx == string::npos)
{
tmpname = strArray[i]+"."+suffix;
}else
{
basename = strArray[i].substr(0,idx);
extname = strArray[i].substr(idx+1);
if(extname.empty())
{
tmpname = strArray[i];
tmpname += suffix;
}else if(extname == suffix)
{
tmpname = strArray[i];
tmpname.replace(idx+1,extname.size(),"xxx");
}else
{
tmpname = strArray[i];
tmpname.replace(idx+1,suffix.size(),suffix);
}
} cout << strArray[i] << " ==> " << tmpname << endl;
}
cout << endl;
} int _tmain(int argc, _TCHAR* argv[])
{
string str = TrimSpace(" sdfsf sdfs sdf ");
cout << "remove space " << str << endl << endl; CreateTmpFilename(); ReversPrintWordInLine(); return 0;
}