In C programming, data types are declarations for variables. This determines the type and size of data associated with variables. For example, intmyVar; Here,myVaris a variable ofint(integer) type. The size ofintis 4 bytes. Basic types Here's a table containing commonly used types in C pr...
The integer data type is further divided intoshort,int, andlongdata types. The short data type takes 2 bytes of storage space;int takes 2 or 4 bytes, and long takes 8 bytes in 64-bit and 4 bytes in the 32-bit operating system. If you try to assign a decimal value to the integer ...
Integer suffix: L l stand for long int ul UL stand for unsigned long int 默认为int Real constant--float Decimal notation Exponential notation a *E(e)^n Suffix F or f -- float L or l -- long double 默认为double symbolic constant #define Π 3.14 symbolic name has the same forms as ...
printf("I am learning C.");inttestInteger=5;printf("Number = %d",testInteger);floatf=5.99;// 浮点数printf("Value = %f",f);shorta=0b1010110;// 2 进制数字intb=02713;// 8 进制数字longc=0X1DAB83;// 16 进制数字// 以 8 进制形似输出printf("a=%ho, b=%o, c=%lo\n",a,b,...
1、C语言整形(Integer Types) 1) int(整型) int(整数类型,简称整形)这是最常见的整型数据类型,在 32 位编译环境中,通常占用 4 个字节,能表示的数值范围大致在[-2147483648, 2147483647]。 int num1 = 100; num1 是 int 类型的整形变量,它存储的数值是 100。 初学者要注意 int 类型的取值范围,避免出现...
Major data types in C Data Type Description Example Size int To store an integer value -5, -1, 0, 4 4 bytes float To store a floating point number or number with fractional parts 10.3, 13.56, -2.45, 1.414 4 bytes double Same as float but bigger space to store number ...
C Data Types - Learn about C data types, their categories, and how to use them in your C programming projects effectively.
int i_result = integerNum + integerNum2; float f_result = floatNum + floatNum2; printf("整数和:%d\n", i_result); printf("浮点数和:%f\n", f_result); return 0; } 也就是说,数据类型方便了我们在编程的时候进行不同数据的区分,而且编译器也能根据数据类型的不同从而进行一定程度的代...
unsigned int-0 to 4294967295 (for 4 bytes integer) B) short shortcan also be written asshort int, it takes2 bytes (16 bits)in the computer memory and its value range is-32,768 to +32767(which is similar to 2 bytes int data type). ...
C 類型識別碼ODBC C typedefC 類型 SQL_C_CHAR SQLCHAR * unsigned char * SQL_C_WCHAR SQLWCHAR * wchar_t * SQL_C_SSHORT[j] SQLSMALLINT short int SQL_C_USHORT[j] SQLUSMALLINT unsigned short int SQL_C_SLONG[j] SQLINTEGER long int SQL_C_ULONG[j] SQLUINTEGER unsigned long int SQL_...