Question

我正在制作它所以它添加，倍数，减法和除法。我通过我的命令提示符运行它，我不知道如何使它，所以每个计算之间有一个空格。或者即使我可以将它们分开来。但只是一个空间就可以了。

#include <iostream> //io from console

int main() //app entry point 
{ 


  int num1;  //first variabe
  int num2; //second variable
  int sum; //sum of 2 variabes
  int product; //product of 2 variabes
  int difference; //differencr of 2 variabes
  int quotient; //quotient of 2 variabe

  std::cout << "Enter first number:  "; //prompt user for input
  std::cin >> num1; //assigns input to num1

  std::cout << "Enter second number  "; //prompt user for input
  std::cin >> num2; //assigns inout to num2

  sum = num1 + num2; //calcs the sum
  std::cout << "The sum is      "     <<  sum;   //displays the sum

  product = num1 * num2; //calcs the product
  std::cout << "  The product is     " <<     product;   //displays the product

  difference = num1 - num2; //calcs the product
  std::cout << "  The difference is     "   <<  difference;   //displays the        difference

  quotient = num1 / num2; //calcs the quotient
  std::cout << "  The quotient is   "    <<  quotient;   //displays the quotient

}

Answer 1

将它放在每一行之间或行尾或您正在打印的字符串中。

std::cout << "\n";

或在每个输出行的末尾添加<< endl;。

使用\n为您添加了以下示例。

       #include <iostream> //io from console

       int main() //app entry point 
       { 


    int num1;  //first variabe
    int num2; //second variable
    int sum; //sum of 2 variabes
    int product; //product of 2 variabes
    int difference; //differencr of 2 variabes
    int quotient; //quotient of 2 variabe

    std::cout << "\nEnter first number:  "; //prompt user for input
    std::cin >> num1; //assigns input to num1

    std::cout << "\nEnter second number  "; //prompt user for input
    std::cin >> num2; //assigns inout to num2

    sum = num1 + num2; //calcs the sum
    std::cout << "\nThe sum is      "     <<  sum;   //displays the sum

    product = num1 * num2; //calcs the product
    std::cout << "\n  The product is     " <<     product;   //displays the product

    difference = num1 - num2; //calcs the product
    std::cout << "\n  The difference is     "   <<  difference;   //displays the        difference

    quotient = num1 / num2; //calcs the quotient
    std::cout << "\n  The quotient is   "    <<  quotient;   //displays the quotient

}

Answer 2

您可以将光标移动到以下行，如下所示：

std::cout << "\n";
std::cout << std::endl;

endl选项也会强制流进行刷新。

您的代码可能如下所示：

product = num1 * num2;
difference = num1 - num2;

std::cout << "  The product is:   " << product << "\n";
std::cout << "  The difference is " << difference << std::endl;

Answer 3

您可以使用：

std::cout << std::endl;

添加新行

Answer 4

每次添加<< std::endl以输出换行符号。

我正在使用命令提示符在C ++中做一个非常简单的应用程序

4 个答案: