回答編集履歴
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追記
test
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@@ -9,3 +9,73 @@
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あと、argcのチェックもない、A,B,C とか意味のない変数名など
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「追記」
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グローバル変数(x)だけでもクラスは作れます。
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```cpp
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usr~/test % ./a.out
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0
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111
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usr~/test % cat t.cpp
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#include <iostream>
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using namespace std;
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class X{
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int x;
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public:
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X():x(0){}
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int get()const{ return x; }
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void set(int n){ x= n; }
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};
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int main()
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{
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X x;
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cout << x.get() << endl;
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//
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x.set(111);
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//
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cout << x.get() << endl;
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//
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return 0;
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}
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usr~/test %
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```
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