传递参数 [英] Passing Parameters
问题描述
请看下面的代码。这是一个简单的游戏程序
掷骰子 - 非常基本。
我已经将gameStatus声明为全局变量。我想知道是否有
是一种更好的处理方式（可能通过局部变量）
我正在使用该变量来跟踪游戏的状态并通过
从craps（）返回main（），我要么增加或减少银行
余额。
这应该是用本地参数处理？这会是一个更好的方法。
如果是这样，我该怎么做？
谢谢
关注是代码：
#include< iostream>
#include< cstdlib>
#include< ctime>
使用命名空间std;
int rollDice（）;
int craps（）;
enum状态{CONTINUE，WON，LOST};
状态gameStatus;
int main（）{
int bankBalance = 1000;
int wager;
char answer;
do {
cout<<"下注：&;;
cin>> wager;
while（wager> ; = bankBalance）{
cout<<" \ n你的银行余额是：<<<< bankBalance<< endl;
cout<< 请输入有效的投注：<<< endl;
cin>>投注;
}
craps（） ;
if（gameStatus == WON）{
bankBala nce = bankBalance + wager;
cout<<"您的银行余额为$"<< bankBalance<< endl;
}
else {
bankBalance = bankBalance - wager;
cout<<"您的银行余额为$"<< bankBalance< ;< endl;
}
cout<<"你想再玩一次吗？ （y / n）" ;;
cin>>回答;
} while（answer ==''y''|| answer == '' Y ''）; //结束时间
返回0;
}
int craps（）{
int sum，myPoint;
srand（time（0））;
sum = rollDice（）;
开关（总和）{
案例7：
案例11：
gameStatus = WON;
休息;
案例2：
案例3：
案例12：
gameStatus = LOST;
休息;
默认值：
gameStatus = CONTINUE;
myPoint = sum;
cout<<" Point is："<< myPoint<< endl;
}
while（gameStatus == CONTINUE）{
sum = rollDice（）;
if（sum == myPoint）
gameStatus = WON;
else if（sum == 7）
gameStatus = LOST;
}
if（gameStatus == WON）
cout<<" Player wins"<< endl;
else
cout<<" Player Loses"<< endl;
返回（gameStatus）;
}
int rollDice（）{
int die1 ，die2，workSum;
die1 = 1 + rand（）％6;
die2 = 1 + rand（）％6;
workSum = die1 + die2;
cout<<" Player rolled："<<< die1<<"" +"<<< die2<<" ="<< workSum<< endl;
返回workSum;
}
"<<< bankBalance<< endl;
}
else {
bankBalance = bankBalance - wager;
cout<<"您的银行余额是
" << bankBalance<< endl;
}
cout<<"你想再玩一次吗？ （y / n）" ;;
cin>>回答;
} while（answer ==''y''|| answer == '' Y ''）; //结束时间
返回0;
}
int craps（）{
int sum，myPoint;
srand（time（0））;
sum = rollDice（）;
开关（总和）{
案例7：
案例11：
gameStatus = WON;
休息;
案例2：
案例3：
案例12：
gameStatus = LOST;
休息;
默认值：
gameStatus = CONTINUE;
myPoint = sum;
cout<<" Point is："<< myPoint<< endl;
}
while（gameStatus == CONTINUE）{
sum = rollDice（）;
if（sum == myPoint）
gameStatus = WON;
else if（sum == 7）
gameStatus = LOST;
}
if（gameStatus == WON）
cout<<" Player wins"<< endl;
else
cout<<" Player Loses"<< endl;
返回（gameStatus）;
}
int rollDice（）{
int die1 ，die2，workSum;
die1 = 1 + rand（）％6;
die2 = 1 + rand（）％6;
workSum = die1 + die2;
cout<<" Player rolled："<<< die1<<"" +"<<< die2<<" ="<< workSum<< endl;
返回workSum;
}
Sonia< sm ***** @ hotmail.com>在留言中写道
新闻：og ************ @ bignews5.bellsouth.net ...请看下面的内容码。这是一个简单的掷骰子游戏程序 - 非常基本。
我已经将gameStatus声明为全局变量。我想知道
是否有更好的处理方式（可能通过局部变量）
我使用该变量来跟踪游戏的状态并将其传递回main （）来自掷骰子（），我要么增加或减少银行的平衡。
这应该用本地参数来处理吗？这会是一种更好的方式。
如果是这样，我该怎么做？
你不需要做任何这些。见下文。
谢谢
以下是代码：
#include< iostream>
#include< cstdlib>
#include< ctime>
使用命名空间std;
int rollDice（）;
int craps（）;
enum状态{CONTINUE，WON，LOST};
状态gameStatus;
删除此行。
int main（）{
int bankBalance = 1000;
int wager; < char /> char answer;
做{
cout<<"下注：" ;;
cin>> wager;
while（wager> = bankBalance）{
cout<<" \ n你的银行余额是：<<< bankBalance<< endl;
cout<<"输入有效的投注："<< endl;
cin>>投注;
}
craps（）;
删除此行。
if（gameStatus == WON）{
替换为：
if（craps（）== WON）{
bankBalance = bankBalance + wager;
cout<<"你的银行存款是
Hi, Please look at the following code. This is a simple program for a game
of craps - very basic.
I have declared the gameStatus as global variable. I was wondering if there
is a better way of handling this (possibly via local variables)
I am using that variable to keep track of the status of the game and pass
it back to main() from craps() where I either increase or decrease a bank
balance.
Should this be handled with local parameters ? would that be a better way.
If so, how would I do that ?
Thanks
Following is the code:
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int rollDice();
int craps();
enum Status {CONTINUE, WON, LOST};
Status gameStatus;
int main(){
int bankBalance = 1000;
int wager;
char answer;
do {
cout<<"Place a wager: ";
cin>>wager;
while (wager >= bankBalance) {
cout<<"\nYour bank balance is: "<<bankBalance<<endl;
cout<<"Please enter a valid wager: "<<endl;
cin>>wager;
}
craps();
if (gameStatus == WON) {
bankBalance = bankBalance + wager;
cout<<"Your bank balance is $"<<bankBalance<<endl;
}
else {
bankBalance = bankBalance - wager;
cout<<"Your bank balance is $"<<bankBalance<<endl;
}
cout<<"Do you want to play again? (y/n)";
cin>>answer;
} while( answer ==''y'' || answer == ''Y''); // end of while
return 0;
}
int craps() {
int sum, myPoint;
srand(time(0));
sum = rollDice();
switch (sum) {
case 7:
case 11:
gameStatus = WON;
break;
case 2:
case 3:
case 12:
gameStatus = LOST;
break;
default:
gameStatus = CONTINUE;
myPoint = sum;
cout<<"Point is: "<<myPoint<<endl;
}
while(gameStatus==CONTINUE) {
sum=rollDice();
if(sum==myPoint)
gameStatus = WON;
else if (sum==7)
gameStatus = LOST;
}
if (gameStatus == WON)
cout<<"Player wins"<<endl;
else
cout<<"Player Loses"<<endl;
return(gameStatus);
}
int rollDice() {
int die1, die2, workSum;
die1 = 1+rand() % 6;
die2 = 1+rand() % 6;
workSum = die1 + die2;
cout<<"Player rolled: "<<die1<<" + "<<die2<<" = "<<workSum<<endl;
return workSum;
}
解决方案"<<bankBalance<<endl;
}
else {
bankBalance = bankBalance - wager;
cout<<"Your bank balance is
"<<bankBalance<<endl;
}
cout<<"Do you want to play again? (y/n)";
cin>>answer;
} while( answer ==''y'' || answer == ''Y''); // end of while
return 0;
}
int craps() {
int sum, myPoint;
srand(time(0));
sum = rollDice();
switch (sum) {
case 7:
case 11:
gameStatus = WON;
break;
case 2:
case 3:
case 12:
gameStatus = LOST;
break;
default:
gameStatus = CONTINUE;
myPoint = sum;
cout<<"Point is: "<<myPoint<<endl;
}
while(gameStatus==CONTINUE) {
sum=rollDice();
if(sum==myPoint)
gameStatus = WON;
else if (sum==7)
gameStatus = LOST;
}
if (gameStatus == WON)
cout<<"Player wins"<<endl;
else
cout<<"Player Loses"<<endl;
return(gameStatus);
}
int rollDice() {
int die1, die2, workSum;
die1 = 1+rand() % 6;
die2 = 1+rand() % 6;
workSum = die1 + die2;
cout<<"Player rolled: "<<die1<<" + "<<die2<<" = "<<workSum<<endl;
return workSum;
}
Sonia <sm*****@hotmail.com> wrote in message
news:og************@bignews5.bellsouth.net...Hi, Please look at the following code. This is a simple program for a game
of craps - very basic.
I have declared the gameStatus as global variable. I was wondering if there is a better way of handling this (possibly via local variables)
I am using that variable to keep track of the status of the game and pass
it back to main() from craps() where I either increase or decrease a bank
balance.
Should this be handled with local parameters ? would that be a better way.
If so, how would I do that ?
You don''t need to do any of that. See below.
Thanks
Following is the code:
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int rollDice();
int craps();
enum Status {CONTINUE, WON, LOST};
Status gameStatus;
Remove this line.
int main(){
int bankBalance = 1000;
int wager;
char answer;
do {
cout<<"Place a wager: ";
cin>>wager;
while (wager >= bankBalance) {
cout<<"\nYour bank balance is: "<<bankBalance<<endl;
cout<<"Please enter a valid wager: "<<endl;
cin>>wager;
}
craps();
Remove this line.
if (gameStatus == WON) {
Replace with:
if (craps() == WON) {
bankBalance = bankBalance + wager;
cout<<"Your bank balance is
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