问题描述

请看下面的代码

int main()
{
    cout << "Enter numbers (-1 to stop entering; -2 to exit)" << endl;

    while(cin>>enterNumber)
    {
     numbers.push_back(enterNumber);
    }


    for(size_t size=0;size<numbers.size();size++)
    {
        cout << numbers[size] << endl;
    }
}

我在这里尝试做的是这样的

What I am trying to do here is something like this

1. 输入数字列表(例如:1 2 3 4 5 6 7 8 9 0 11)
2. 将它们全部读入向量
3. 打印它们

在这里，当我按回车键时，什么也没有发生！似乎循环没有退出.当我按下回车键时如何打印值?

In here, when I hit enter, nothing is happening! Seems like the loops didn't exit. How to print the values when I hit the enter?

更新

我按照答案中给出的建议编辑了代码.

I edited the code as advises given in answers.

int main()
{
    cout << "Enter numbers (-1 to stop entering; -2 to exit)" << endl;

    std::string line;
getline(std::cin, line);
std::istringstream iss(line);
while (iss >> enterNumber)
{
    numbers.push_back(enterNumber);
}


    for(size_t size=0;size<numbers.size();size++)
    {
        cout << numbers[size] << endl;
    }
}

但它现在给出了另一个错误

but it gives another error now

"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make[1]: Entering directory `/cygdrive/c/Users/yohan/Documents/NetBeansProjects/Excersice 6'
"/usr/bin/make"  -f nbproject/Makefile-Debug.mk dist/Debug/Cygwin-Windows/excersice_6.exe
make[2]: Entering directory `/cygdrive/c/Users/yohan/Documents/NetBeansProjects/Excersice 6'
mkdir -p build/Debug/Cygwin-Windows
rm -f build/Debug/Cygwin-Windows/Multiple.o.d
g++    -c -g -MMD -MP -MF build/Debug/Cygwin-Windows/Multiple.o.d -o build/Debug/Cygwin-Windows/Multiple.o Multiple.cpp
Multiple.cpp: In function `int main()':
Multiple.cpp:22: error: variable `std::istringstream iss' has initializer but incomplete type
Multiple.cpp:60:3: warning: no newline at end of file
make[2]: *** [build/Debug/Cygwin-Windows/Multiple.o] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
nbproject/Makefile-Debug.mk:78: recipe for target `build/Debug/Cygwin-Windows/Multiple.o' failed
make[2]: Leaving directory `/cygdrive/c/Users/yohan/Documents/NetBeansProjects/Excersice 6'
nbproject/Makefile-Debug.mk:61: recipe for target `.build-conf' failed
make[1]: Leaving directory `/cygdrive/c/Users/yohan/Documents/NetBeansProjects/Excersice 6'
nbproject/Makefile-impl.mk:39: recipe for target `.build-impl' failed


BUILD FAILED (exit value 2, total time: 1s)

推荐答案

使用 getline.然后将该字符串放入istringstream.然后从 istringstream 中读取，而不是你现在使用 cin 的地方.

Read in a line from cin into a string using getline. Then put that string into an istringstream. Then read from that istringstream in place of where you're using cin now.

std::string line;
getline(std::cin, line);
std::istringstream iss(line);
while (iss >> enterNumber)
{
    numbers.push_back(enterNumber);
}

这篇关于将整行整数读入向量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！