本文介绍了将整数行读入向量的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
请查看以下代码
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;
}
}
我在这里想要做的就是这样
What I am trying to do here is something like this
- 数字类型列表(例如:1 2 3 4 5 6 7 8 9 0 11)
- 将它们全部读入向量
- 打印它们
在这里,当我按下Enter键时,什么都没有发生!似乎循环没有退出.按下Enter键后如何打印值?
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;
}
}
但是现在又出现了另一个错误
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
中.然后从该 istringstream
中读取内容,以代替现在使用的 cin
位置.
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);
}
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