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///////////////////////////////////////////////////////////

// Copyright (c) 2013, ShangHai xxxx Inc.

//

// FileName: 1_5.cpp

//

// Description:

//

// Created: 2014年05月12日 星期一 21时52分50秒

// Revision: Revision: 1.0

// Compiler: g++

//

///////////////////////////////////////////////////////////

//demo 1

#if 1

#include <iostream>

#include <string>
using namespace std;
int main()

{

    string user_name;
cout<< "Plaese enter your name: ";

    cin>> user_name;
switch(user_name.size())

    {

        case 0:

            cout<< "Ah, the user with no name. "

                << "Well, ok, hi, user with no name\n";

            break;

        case 1:

            cout<< "A l-character name? Hmm, have you read Kafka?: "

                << "hello, "

                << user_name <<endl;

            break;

        default:

            //字符串长度超过一个字符

            cout<< "Hello, "<< user_name

                << " -- happy to make your acquaintance!\n";

            break;

    }
return 0;

}

#endif
//demo 2

#if 0

#include <iostream>

#include <iomanip>

#include <cstring>
using namespace std;
int main()

{

    //必须分配一个大小固定的空间

    const int nm_size = 128;

    char user_name[nm_size];

    cout<< "Please enter your name: ";

    cin>>setw(nm_size)>>user_name;
switch(strlen(nm_size))

    {

        // ...这里处理case 0和case 1，方法同前
case 127:

            // 也许所得的字符串已被setw（）舍弃掉部分内容

            cout<< "That is a very big name, indeed --"

                << "we may have needed to shorten it!\n"

                << "In any case,\n";

            // 此处不加break，往下继续执行

        default:

            // 如果符合前述条件，也会执行至此处，因为先前并没有break

            cout<< "Hello, "<<user_name

                << " -- happy to make your acquaintance!\n";

            break;

    }
return 0;

}

#endif

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