I am a primer in c++. How to use the function like this: void entry (int i)? Here is the source code:
#include<iostream> using namespace std; int main() { int i=0; int phone_book[3]={ 1, 2, 3 }; void entry (int i) // simple use { cout<<phone_book<<" "<<"n"; } }
I want to use the function : void entry (int i), and let the program output the first value of the array phone_book, but it falled. How to use this kind of function, and what is wrong in my program?
Thank you, and sorry for my poor English.
2. Re: How to use this kind of function?
#2562
Posted by: 2003-08-26 14:09:52
Edit: cout<<phone_book<<" "<<"n"; should be: cout<<phone_book<<" "<<"n"; still falled. It seems that if I have already send out the post, I can't modify if.
3. Re: How to use this kind of function?
#2563
Posted by: 2003-08-26 14:15:11
#include<iostream>
#include<istream>
using namespace std;
int main()
{
int i=0;
int phone_book[3]={ 1, 2, 3 };
void entry (int i) // simple use
{
cout<<phone_book[ i ]<<" "<<"n";
}
}
[code]
cout<<phone_book<<" "<<"n"; should be:
cout<<phone_book[ i ]<<" "<<"n";
Sorry, when I type the source code, all seem fine, but after I clcik the post button,
some symbols always are missed.
The problem is solved. #include<iostream> #include<istream> /* *first, a function can not be defined within another function. *second, all the funciton except int main() must be called within the function int main(). */ using namespace std; void entry(int i); //the form of the function int main() { int i; cout<<"there are three recorders, please entry the value of the recorder number, 0, 1, or 2?n"; cin>>i; entry(i); //call the function entry (int i) within the function main() } void entry(int i) //define a function { int phone_book[3]={ 3, 6, 9 }; cout<<"the recorder"<<i<<"is"<<phone_book<<"n"; } Hope this make sense.
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