cpp_learn/cpp_3_8_chapter1.cpp at master · coldran/cpp_learn · GitHub

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#include<iostream>

intmain(int argc, charconst *argv[])
{
int value = 0, sum = 0;
while(std::cin >> value){
 sum += value;
 }
 std::cout << "sum = " << sum << std::endl;

int a{1};
int &b{a};
int *p{&a};
int &q{*p};
 std::cout << b << std::endl;

int i{10};
constint &j{i}; // 引用
int &k{i};
 std::cout << i << '\t' << j << '\t' << k << std::endl;
 k = 5;
 std::cout << i << '\t' << j << '\t' << k << std::endl;

int i2{0};
constint *const l{&i2};
printf("%d",*l);

int n;
 std::cin >> n;
constexprint m = 3;
 std::cout << m << std::endl;

constexprint *c{0};

return0;
}