代码编译,但没有控制台输出
Code compiles, but no console output
我的 C++ 代码编译并运行,但没有输出打印到控制台。我认为它与字符串变量有关,但我不确定。我是一个菜鸟,任何帮助将不胜感激。我在 GNU GCC 编译器中使用代码块。
#include <iostream>
#include <string>
using namespace std;
int main()
{
string botlong, botshort, secondline;
botlong = "bottles of beer on the wall,";
botshort = "bottles of beer";
secondline = "Take one down and pass it around,";
for(int bottles = 99; bottles<=0; bottles--)
{
cout<<bottles <<botlong <<bottles <<botshort;
for(int lostB = 98; lostB<=0; lostB--)
{
cout<<secondline<<lostB<<botlong;
}
}
return 0;
};
必须是>=
而不是<=
,否则你的循环是进不去的:
for(int bottles = 99; bottles >= 0; --bottles)
{
cout << bottles << botlong << bottles << botshort;
for(int lostB = 98; lostB >= 0; --lostB)
{
cout << secondline << lostB << botlong;
}
}
我认为您在 for
循环中的条件在开始时不成立。您有错字,请将 bottles<=0
更正为 bottles>=0
并与下一个 for
循环相同。
我的 C++ 代码编译并运行,但没有输出打印到控制台。我认为它与字符串变量有关,但我不确定。我是一个菜鸟,任何帮助将不胜感激。我在 GNU GCC 编译器中使用代码块。
#include <iostream>
#include <string>
using namespace std;
int main()
{
string botlong, botshort, secondline;
botlong = "bottles of beer on the wall,";
botshort = "bottles of beer";
secondline = "Take one down and pass it around,";
for(int bottles = 99; bottles<=0; bottles--)
{
cout<<bottles <<botlong <<bottles <<botshort;
for(int lostB = 98; lostB<=0; lostB--)
{
cout<<secondline<<lostB<<botlong;
}
}
return 0;
};
必须是>=
而不是<=
,否则你的循环是进不去的:
for(int bottles = 99; bottles >= 0; --bottles)
{
cout << bottles << botlong << bottles << botshort;
for(int lostB = 98; lostB >= 0; --lostB)
{
cout << secondline << lostB << botlong;
}
}
我认为您在 for
循环中的条件在开始时不成立。您有错字,请将 bottles<=0
更正为 bottles>=0
并与下一个 for
循环相同。