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Light-City
2020-04-06 00:57:02 +08:00
parent f97c156cc4
commit a4d828bb4c
120 changed files with 4413 additions and 0 deletions
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8
practical_exercises/10_day_practice/day4/const用法/readme.md Normal file
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
const <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD> &<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣺱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD>,<2C><><EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD>¡<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> const <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ز<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> const <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[<5B><>С]...
<EFBFBD><EFBFBD>ָ<EFBFBD>룺ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>롣

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practical_exercises/10_day_practice/day4/const用法/常对象与常引用.cpp Normal file
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#include<iostream>
using namespace std;
void display(const double& r);
class A
{
public:
A(int i,int j) {x=i; y=j;}
private:
int x,y;
};
int main()
{ double d(9.5);
display(d);
A const a(3,4); //a<>dz<EFBFBD><C7B3><EFBFBD><EFBFBD>󣬲<EFBFBD><F3A3ACB2>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>
system("pause");
return 0;
}
void display(const double& r)
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>βΣ<CEB2><CEA3>ں<EFBFBD><DABA><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ܸ<EFBFBD><DCB8><EFBFBD> r<><72><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD><EFBFBD><EFBFBD>
{ cout<<r<<endl; }

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practical_exercises/10_day_practice/day4/const用法/常对象与普通函数.cpp Normal file
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#include<iostream>
using namespace std;
class R
{ public:
R(int r1, int r2){R1=r1;R2=r2;}
//const<73><74><EFBFBD>ֳ<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>غ<EFBFBD><D8BA><EFBFBD>
void print();
void print() const;
private:
int R1,R2;
};
/*
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>const;
<EFBFBD><EFBFBD><EFBFBD>const<EFBFBD>Ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD>֣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>ҲҪ<EFBFBD><EFBFBD>const<EFBFBD>ؼ<EFBFBD><EFBFBD>֡<EFBFBD>
const<EFBFBD>ؼ<EFBFBD><EFBFBD>ֿ<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void R::print()
{
cout<<"<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
cout<<R1<<":"<<R2<<endl;
}
//ʵ<><CAB5><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>
void R::print() const
{
cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
cout<<R1<<";"<<R2<<endl;
}
int main()
{
R a(5,4);
a.print(); //<2F><><EFBFBD><EFBFBD>void print()
//ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>
const R b(20,52);
b.print(); //<2F><><EFBFBD><EFBFBD>void print() const
system("pause");
return 0;
}