1. What are the data types in C language?
Data types in C language can be divided into integer types, floating point types, character types and Boolean types. Let us take a look at them below.
2. Data type classification
1. Integer type
short //短整型
int //整型
long //长整型
long long //更长的整数
Code:
printf("%d\n", sizeof(short));//长度为2
printf("%d\n", sizeof(int)); //长度为4
printf("%d\n", sizeof(long)); //长度为4
printf("%d\n", sizeof(long long));//长度为82. Floating point type
float // 精度点浮点数
double // 双精度浮点数
代码:
printf("%d\n", sizeof(float));//长度为4
printf("%d\n", sizeof(double));//长度为83.Character type
char // character type
Code:
printf("%d\n", sizeof(char)); //长度为1
4. Boolean type
bool // Boolean type
Special note: The C language itself does not directly support the Bool type, and the header file needs to be introduced:stdbool.h
Code:
printf("%d\n", sizeof(bool)); //长度为13. Summary:
The basic types of C language can be divided into four types: integer type, floating point type, character type and Boolean type.
Integer types: short (2 bytes), int (4 bytes), long (4 bytes), longlong (8 bytes).
Floating point type: float (4 bytes), double (8 bytes).
Character type: char (1 byte).
Boolean type: bool (1 byte).
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