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把做工程過(guò)程中經(jīng)常用的內(nèi)容段珍藏起來(lái),下邊資料是關(guān)于C++演示在不同的范圍內(nèi)不沖突使用同名變量的范例的內(nèi)容。
#include <iostream>
using std::cout;
using std::endl;
{
public:
};
{
}
{
return x;
}
int main()
{
abc a;
cout << "Scope within class abc: x = " << a.x
<< "nScope within namespace def: x = " << def::x
<< "nScope within function getx: x = " << getx()
<< "nScope within global scope : x = " << ::x
<< "nScope within local main function: x = " << x;
{
cout << "nScope within local code block: x = " << x;
}
return 0;
}
Scope within class abc: x = 10
Scope within namespace def: x = 20
Scope within function getx: x = 30
Scope within global scope : x = 40
Scope within local main function: x = 50
Scope within local code block: x = 60
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