C++ Basic Series–Variables: Integer and Floating Point_Who Month’s Blog

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Write the code as follows

#include
 using namespace std;
 int main()
 {
     
 int a; //integer type 
 a=1; //Assign
 cout<<"This is a:"<<  a<<endl; //output statement
 	
 float b; //floating point 
 b=2.3; //Assign
 cout<<"This is b:"<<  b<<endl;
 	
 float c,d;
 c=a/2; // divide a by 2, assign to c 
 cout<<"This is c:"<<  c<<endl;
 d=b/2; // divide b by 2, assign it to d
 cout<<"This is d:"<<  d<<endl;
 return 0;
 }
 

Analysis

Pay attention to the output results of the floating-point variables c and d. Because a is an integer variable, the result of a/2 is 0, and the decimal part is removed. Only keep the integer part (not Rounding);
and b is a floating-point variable, the result of b/2 is 1.15, and the decimal part is preserved.

Output

[This series is only a very basic introduction, suitable for readers who do not need to understand deeply , thank you for reading~]