[英]Reading line of integers into a vector
請看下面的代碼
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;
}
}
我在這里嘗試做的是這樣的
在這里,當我按回車鍵時,什么也沒有發生! 似乎循環沒有退出。 當我按下回車鍵時如何打印值?
更新
我按照答案中給出的建議編輯了代碼。
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;
}
}
但它現在給出了另一個錯誤
"/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)
使用getline
cin 中的一行讀入字符串。 然后將該字符串放入istringstream
。 然后從istringstream
讀取,而istringstream
你現在使用cin
地方。
std::string line;
getline(std::cin, line);
std::istringstream iss(line);
while (iss >> enterNumber)
{
numbers.push_back(enterNumber);
}
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