First, many friends who have contacted variables know what is variables, don't explain them.
Old rules, examples
#include
int main ()
{
Bool Senior; // Boolean variable
Senior = true; // set to true value
IF (Senior) // Judgment variable original book is test variable
Std :: cout << "----------------------";
Return 0;
}
Everyone seeing the above program, I don't have to ask me to explain it to you.
#include
The header file I do in the second lesson is not more than Luo.
int main ()
I don't know if I don't understand 1 lesson.
Bool seenior;
I want to say this, this is the Boolean variable, Bool is the declaration of the variable Senior tells you what type of variable this variable is if you don't understand this.
Int Senior;
This will always understand this understanding above and this is just a little just one.
Interty one is Boolean
Let me explain that the Boolean variable Boolean variable has two logic. He contains 2 values. One is a true (true). 1 and 0 of the value.
0 and 1 of a integer value can be converted to the true and false of the Boolean variable
0 is true for false 0
Uses: He usually uses the logic test to change the program process through the logic test
In the example, I refer to I can't explain here. This is the C language conditional statement is very fun statement, but I don't talk about it. I listen to me.
2, character type variable
People who are in the base process should know that characters should be 1, 2, 3 this is constant integer int
A.b.c This is what is the character to indicate that the variable is to represent a.b.c?
See here char We use this to indicate a variable is a character line.
This should don't use too much to explain too much.
3 WCHAT_T
This is the function of expanding char, but it is also a character type but more than 8 digits.
WCHAR_T data type is generally 16 digits
2 are keywords for characters variables
4 integer
I have a little ignored above is that it is not int a kind.
Integer variables can be symbolic unsigned long-term short integer and common type
I have a demonstration of the statement of a few middle and integer variables.
Long int
Long // 2 sentences are long integer integers
Signed Int
SIGNED / / symbol type integer
Unsigned int
Unsigned / / unsigned integer
Short int
Short // short integer
Unsigned short int
Unsigned short // No symbol short integersion
When defining special integers, as you can omit intimate
More specific you can master your own
Unregulated use unsigend short short long long, you can combine
Can be unsigned long integer or other other you need what you need to match
4. Floating-point my vernacular is to contact the decimal point
Clearly
I listed him out
Float // single precision
Double // double precision
Long double // long integer double precision
This is too simple for one of an understanding. You will be able to use it for you.
