新手问题 - 编码标准 - 我该怎么写呢 [英] Newbie question - coding standards - how should I write this

问题描述

我正在尝试写一个程序来计算执行程序的当前年龄。通过询问2个问题来完成：


- 当年是什么

- 你的出生年份是什么


在用户输入这些之后，需要计算用户的当前年龄。


我完成了它，因为它并不是那么困难。但是我想按照标准来做这件事，我想把主要的函数原型和main下面的实际函数定义。然而，我无法让它工作。


这就是我现在所拥有的但如果我这样做的话，''cout part''正在显示但只有文字显示这是你现在的年龄。由此判断，我猜下一行的部分出了问题：cout<< x（a，b）<< endl;


有人有什么建议吗？


这就是我现在所拥有的：


#include< vcl.h> //需要Borland

#include< iostream> //需要输入输出


使用命名空间std;


// -------------- -------------------------------------------------- -----------


int x（int，int）; / *函数声明

或原型* /


int main（）


{

int a; //声明变量

int b; //声明变量


cout<< 在此输入当前年份：;

cin>> a;


cout<< 输入出生年份：;

cin>> b;


cout<< 这是你现在的年龄：" ;;

cout<< x（a，b）<< endl;


返回0;

}


int x（int a，int b）//函数定义


{

int x =（a - b）;


int d;

cin>> d;


返回x;

}

解决方案

我正在尝试写一个程序来计算执行程序的当前年龄。通过询问2个问题来完成：


- 当年是什么

- 你的出生年份是什么


在用户输入这些之后，需要计算用户的当前年龄。


我完成了它，因为它并不是那么困难。但是我想按照标准来做这件事，我想把主要的函数原型和main下面的实际函数定义。然而，我无法让它工作。


这就是我现在所拥有的但如果我这样做的话，''cout part''正在显示但只有文字显示这是你现在的年龄。由此判断，我猜下一行的部分出了问题：cout<< x（a，b）<< endl;


有人有什么建议吗？


这就是我现在所拥有的：


#include< vcl.h> //需要Borland

#include< iostream> //需要输入输出


使用命名空间std;


// -------------- -------------------------------------------------- -----------


int x（int，int）; / *函数声明

或原型* /


int main（）


{

int a; //声明变量

int b; //声明变量


cout<< 在此输入当前年份：;

cin>> a;


cout<< 输入出生年份：;

cin>> b;


cout<< 这是你现在的年龄：" ;;

cout<< x（a，b）<< endl;


返回0;

}


int x（int a，int b）//函数定义


{

int x =（a - b）;


int d;

cin>> d;


返回x;

}

你的代码是完全正确但我不喜欢不明白为什么你已经采取了

展开 | 选择 | Wrap | 行号

这是因为你的函数x（int，int）内部问对于将存储在int d变量中的另一个用户输入，我已经评论过，现在它应该如下工作。

展开 | 选择 | Wrap | 行号

展开 | 选择 | Wrap | 行号

I am trying to write to a program that will compute the current age of the one executing the program. It is done by asking 2 questions:

- What is the current year
- What is your birth year

After these have been entered by the user the current age of the user needs to be computed.

I accomplished it because it is not all that difficult. However I want to do it according to standards and I would like to have the function prototype above main and the actual function definition below main. I am however not able to get it to work.

This is what I have now but if I do it like this the ''cout part'' is being displayed but only the text ''this is your age now''. Judging by this I guess something is wrong with the part on the next line: cout << x (a, b) << endl;

Does anybody have any suggestions?

This is what I have now:

#include <vcl.h> //needed for Borland
#include <iostream> //needed for input output

using namespace std;

//---------------------------------------------------------------------------


int x (int, int); /* function declaration
or prototype */

int main()

{
int a; //declaration variables
int b; //declaration variables

cout << "Type current year here: ";
cin >> a;

cout << "Type year of birth: ";
cin >> b;

cout << "This is your age now: ";
cout << x (a, b) << endl;

return 0;
}

int x (int a, int b) // function definition

{
int x = (a - b);

int d;
cin >> d;

return x;
}

解决方案

I am trying to write to a program that will compute the current age of the one executing the program. It is done by asking 2 questions:

- What is the current year
- What is your birth year

After these have been entered by the user the current age of the user needs to be computed.

I accomplished it because it is not all that difficult. However I want to do it according to standards and I would like to have the function prototype above main and the actual function definition below main. I am however not able to get it to work.

This is what I have now but if I do it like this the ''cout part'' is being displayed but only the text ''this is your age now''. Judging by this I guess something is wrong with the part on the next line: cout << x (a, b) << endl;

Does anybody have any suggestions?

This is what I have now:

#include <vcl.h> //needed for Borland
#include <iostream> //needed for input output

using namespace std;

//---------------------------------------------------------------------------


int x (int, int); /* function declaration
or prototype */

int main()

{
int a; //declaration variables
int b; //declaration variables

cout << "Type current year here: ";
cin >> a;

cout << "Type year of birth: ";
cin >> b;

cout << "This is your age now: ";
cout << x (a, b) << endl;

return 0;
}

int x (int a, int b) // function definition

{
int x = (a - b);

int d;
cin >> d;

return x;
}

Your code is quite correct but I don''t understand why you have taken

Expand|Select|Wrap|Line Numbers

It''s because inside your function x(int, int) ask for another user input that will be stored in the int d variable, I already commented that, now it should work as below.

Expand|Select|Wrap|Line Numbers

Expand|Select|Wrap|Line Numbers

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