(1) application arithmetic operators: including +, -, *,/, % and the + +, the decrement - operator, such as

(2) the arithmetic expression oneself write,

(3) data types include: int, float, double, char,

(4) character constants,

(5) the data input from the keyboard, joining instructions for data input and output requirements (as a data is output, one line of text from the keyboard input and output on the screen),

(6) write operation result,

CodePudding user response:

The book did not? At high score topic and simple example, other data types under their research:

 # include & lt; stdio.h> 

Int main () 
{
Int a, b; 
Float c, d; 
Double e, f; 
Char ch, ch1='A'; 

Printf (" input integer: "); 
The scanf (" % d % d ", & amp; A, & amp; B); 
Printf (" (+ - */%) b \ n "); 
Printf (" a + b=% d \ \ na na - b=% d * b=% d \ \ na na/b=% d % % b=% d \ n ", 
A - a + b, b, a * b, a/b, a % b); 
+; 
b--; 
Printf (" +=% d \ n \ nb -=% d ", a, b); 

return 0; 
} 

//run: 
//input integer: 5 4 
//a (+ - */%) b 
//a + b=9 
//a - b=1 
//a * b=20 
//a/b=1 
//a % b=1 
//+ 6=
//-=3 b 
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