第三周作业
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第一道例题
/*********************************** 功能：布尔类型使用举例 ***********************************/#include<iostream>using namespace std;int main(){bool flag = true;cout<<flag<<endl;cout<<boolalpha<<flag<<endl;cout<<flag + 5<<endl;flag = 0;cout<<"执行语句flag=0;后flag的值为："<<boolalpha<<flag<<endl;flag = 0.0;cout<<"执行语句flag=0.0;后flag的值为："<<boolalpha<<flag<<endl;return 0;}第二道例题
# include<iostream>using namespace std;int main(){short i, j, m, n;i = 1000;j = 1000;m = i + j;n = i * j;cout<<"m = "<<m<<endl;cout<<"n = "<<n<<endl;return 0;}第三道例题
# include<iostream>using namespace std;int main(){int i = 6, j, k, temp;j = ++i;k = i++;++i = 1;cout<<"i = "<<i<<endl<<"j = "<<j<<endl<<"k = "<<k<<endl;return 0;}第四道例题
# include<iostream>using namespace std;int main(){char ch;cout<<"please input a character: ";cin>>ch;ch = ch>= 'a'&&ch<= 'z'?ch - 'a' + 'A' : ch;//上述语句等价于ch = ch>= 'a'&&ch,= 'z '?ch - 32 : ch;cout<<"The result is: "<<ch<<endl;return 0;}第五道例题
# include<iostream>using namespace std;int main(){int ab, ac;double b = 3.14;char c = 'A';ab = int(b);ac = int(c);cout<<"b = "<<b<<endl;cout<<"ab="<<ab<<endl;cout<<"c ="<<c<<endl;cout<<"ac = "<<ac<<endl;return 0;}
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