文档介绍：实验一、熟悉实验环境
#include<>
int main()
{
cout<<”hello!”<<endl;
return 0 ;
}
3.#include <>
const float Pi=;
void main()
{
float r,s,c;
cout <<"r=";
cin >>r;
s=Pi*r*r;
c=2*Pi*r;
cout <<"The perimeter of the circle:"<<c<<endl;
cout <<"The area of the circle:"<<s<<endl;
}
运行结果:
实验二、简单程序开发
#include <>
void main()
{
//基本数据类型
cout << "sizeof(char) :" << sizeof(char) << endl;
cout << "sizeof(short) :" << sizeof(short) << endl;
cout << "sizeof(int) :" << sizeof(int) << endl;
cout << "sizeof(long) :" << sizeof(long) << endl;
cout << "sizeof(float) :" << sizeof(float) << endl;
cout << "sizeof(double):" << sizeof(double) << endl;
cout << endl;
//指针
cout << "sizeof(void *) :" << sizeof(void *) << endl;
cout << "sizeof(char *) :" << sizeof(char *) << endl;
cout << "sizeof(short *) :"<< sizeof(short *)<< endl;
cout << "sizeof(int *) :" << sizeof(int *) << endl;
cout << "sizeof(long *) :" << sizeof(long *) << endl;
cout << "sizeof(float *) :"<< sizeof(float *)<< endl;
cout << "sizeof(double *):"<< sizeof(double *) << endl;
}
运行结果:
2:循环与分支结构
编写一个程序,循环从标准输入某个雇员的工作时间(以小时计)和每小时的工资数。计算并输出他的工资。若雇员月工作小时超过40小时,。若雇员月工作小时超过50个小时,则超过50的部分按原工资的3倍来计算。。
#include <>
void main()
{
int workTime;
float wagePerHour;
int overTime1 = 0;
int overTime2 = 0;
while(1) {
cout << "Please input employee_work_time and wage_per_hour(0 0 to end):\n";
cin >> workTime >> wagePerHour;
//输入工作时间为0表示程序结束
if (workTime == 0)
break;//根据工作时间不同判断超时性质
if (workTime > 50)
{
overTime2 = workTime - 50;
overTime1 = 10;
workTime = 40;
}
else if (workTime > 40)
{
overTime2 = 0;
overTime1 = workTime - 40;
workTime = 40;
}
else
overTime1 = overTime2 = 0;
//输出工资值
cout << "Wages : ";
cout << workTime * wagePerHour + \
overTime1 * wagePerHour * + \
overTime2 * wagePerHour * 3 << endl;
}
}
运行结果:
三、函数与程序结构
输入下列程序,运行它,分析得到的结果
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