typ_cas_1.cpp

来自「数据结构常用算法合集」· C++ 代码 · 共 23 行

 //typ_cas_1.cpp
 #include <iostream.h>				//cout
 #include <conio.h>					//getch()
 void main()
 { int a=6,b=7,c;
   float x=4.3,y=3.2,z;
   c = a * b;							//整数相乘=整数
   cout << "c=" << c << endl;
   c = a * (int) x;					//转换为整数
   cout << "c=" << c << endl;
   c = (int) x * (int) y;			//转换为整数
   cout << "c=" << c << endl;
   z = a * b / 2.0;          			//以2.0浮点数为计算类型
   cout << "z=" << z << endl;
   z = a * (int) x;          			//整数乘整数=>浮点数
   cout << "z=" << z << endl;
   z = (int) x * (int) y;      		//浮点数转换为整数再运算
   cout << "z=" << z << endl;
   z = float (a) / b;				//将a转换为浮点数
   cout << "z=" << z << endl;
   getch();
 }