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问题描述
#include <iostream>
#include <string>
using namespace std;
void start_menu()
{
do{
char choice;
cout << " VaruBanditen" << endl
<< " ------------" << endl
<< endl << " Varor:" << endl
<< " (1) S?ckpipa\t50kr\t (5) Isglass\t\t 2kr" << endl
<< " (2) Potta\t10kr\t (6) Fotboll\t\t15kr" << endl
<< " (3) Fiskn?t\t25kr\t (7) Skruvmejsel\t10kr" << endl
<< " (4) Dunjacka\t95kr\t (8) Toalettpapper\t 7kr" << endl
<< endl << " Myntinkast:" << endl << " [A] 10kr [B] 5kr [C] 1kr"
<< endl << " Kredit: " << start_menu().s_change() << "Kr" << endl
<< endl << " [V] L?gg till/ta bort varor" << endl
<< " [Q] Avsluta programmet" << endl << endl
<< " -----------" << endl
<< " Angel val: ";
cin >> choice;
a.do_choice(choice);
}while((a.choice != 'Q') || (a.choice != 'q'));
}
在函数`void start_menu()'':
一个''未声明(首先使用此功能)
(每个未声明的标识符对于出现在其中的每个功能仅报告一次.)
预期的init声明符,位于}}令牌之前
预期的`,''或`;''在''}''标记之前
''}''标记之前的预期声明
[edit]粘贴了以下作者贡献的错误消息[/edit]
In function `void start_menu()'':
a'' undeclared (first use this function)
(Each undeclared identifier is reported only once for each function it appears in.)
expected init-declarator before ''}'' token
expected `,'' or `;'' before ''}'' token
expected declaration before ''}'' token
[edit]pasted error messages from authors contribution below[/edit]
推荐答案
void start_menu()
...
<< endl << " Kredit: " << start_menu().s_change() << "Kr" << endl
...
即使编译(不应该编译),也会导致无限循环...
Even if it compiled (which it shouldn''t) it would cause an infinite loop...
while((choice != ''Q'') || (choice != ''q''));
代替
instead of
while((a.choice != ''Q'') || (a.choice != ''q''));
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