Question

我正在使用netbeans 6.8：

Product Version: NetBeans IDE 6.8 (Build 200912041610)
Java: 1.6.0_18; Java HotSpot(TM) Client VM 16.0-b13
System: Windows 7 version 6.1 running on x86; Cp1252; en_US (nb)
Userdir: C:\Users\Andre\.netbeans\6.8

我已经从我用来做C ++自学的书中复制了一个程序。这是代码：

/* 
 * File:   main.cpp
 * Author: Andre
 *
 * Created on December 5, 2011, 2:06 PM
 */

#include <iostream>
#include <string>

//using namespace std;

using std::cin;
using std::endl;
using std::cout;
using std::string;

int main() {

    // ask for the persons name
    std::string name;
    cin >> name;

    // build the message that we intend to write
    const string greeting = "Hello, " + name + "!";

    // the number of blanks surrounding the greeting
    const int pad = 1;

    // the number of rows and columns to write
    const int rows = pad * 2 + 3;
    const string::size_type cols = greeting.size() + pad * 2 + 2;

    // write a blank line to separate the output from the input
    cout << endl;

    // write rows "rows of output"
    // invariant: we have written r rows so far
    for (int r = 0; r != rows; ++r) {
        string::size_type c = 0;

        // invariant: we have written c characters so far in the current row
        while (c != cols) {
            // is it time to write the greeting?
            if (r == pad + 1 && c == pad + 1) {
                cout << greeting.size();
            } else {
                // are we on the border?
                if (r == 0 || r == rows - 1 || c == 0 || c == cols - 1) {
                    cout << "*";
                } else {
                    cout << " ";
                    ++c;
                }
            }
        }
    }
    return 0;
}

以下是构建结果：

/usr/bin/make -f nbproject/Makefile-Debug.mk SUBPROJECTS= .clean-conf
make[1]: Entering directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
rm -f -r build/Debug
rm -f dist/Debug/MinGW-Windows/acccpp20.exe
make[1]: Leaving directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
CLEAN SUCCESSFUL (total time: 569ms)

/usr/bin/make -f nbproject/Makefile-Debug.mk SUBPROJECTS= .build-conf
make[1]: Entering directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
/usr/bin/make  -f nbproject/Makefile-Debug.mk dist/Debug/MinGW-Windows/acccpp20.exe
make[2]: Entering directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
mkdir -p build/Debug/MinGW-Windows
rm -f build/Debug/MinGW-Windows/main.o.d
g++    -c -g -MMD -MP -MF build/Debug/MinGW-Windows/main.o.d -o build/Debug/MinGW-Windows/main.o main.cpp
mkdir -p dist/Debug/MinGW-Windows
g++     -o dist/Debug/MinGW-Windows/acccpp20 build/Debug/MinGW-Windows/main.o  
make[2]: Leaving directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
make[1]: Leaving directory `/d/Users/Andre/Documents/NetBeansProjects/AccCpp20'
BUILD SUCCESSFUL (total time: 1s)

当我运行程序时，我在netbeans的输出区域中显示一条消息，其中显示"Process is starting in external window..."和一个弹出"C:\msys\1.0\bin\sh.exe的终端窗口，只有一个空白屏幕并且闪烁光标。

当我做一个简单的程序时，只需打印"Hi!"就可以了。这是怎么回事？

另外，如何发布代码块发布问题？教程说了4个空格...

Answer 1

等待您键入您的姓名并按Enter键。此时它应继续运行。如果您希望它要求您执行此操作，则需要执行以下操作：

int main() {

    // ask for the persons name
    cout << "Please enter your name" << endl;

    std::string name;
    cin >> name;

Answer 2

当你打电话给cin>>时，程序希望用户写东西然后按回车键，然后它会继续执行，如果是这种情况输出的话。

为什么netbeans运行我的简单程序？

2 个答案: