符号属性 长度属性 基本型 所占位数 取值范围 输入符举例 输出符举例
-- -- char 8 -2^7 ~ 2^7-1 %c %c、%d、%u
signed -- char 8 -2^7 ~ 2^7-1 %c %c、%d、%u
unsigned -- char 8 0 ~ 2^8-1 %c %c、%d、%u
[signed] short [int] 16 -2^15 ~ 2^15-1 %hd
unsigned short [int] 16 0 ~ 2^16-1 %hu、%ho、%hx
[signed] -- int 32 -2^31 ~ 2^31-1 %d
unsigned -- [int] 32 0 ~ 2^32-1 %u、%o、%x
[signed] long [int] 32 -2^31 ~ 2^31-1 %ld
unsigned long [int] 32 0 ~ 2^32-1 %lu、%lo、%lx
[signed] long long [int] 64 -2^63 ~ 2^63-1 %I64d
unsigned long long [int] 64 0 ~ 2^64-1 %I64u、%I64o、%I64x
-- -- float 32 +/- 3.40282e+038 %f、%e、%g
-- -- double 64 +/- 1.79769e+308 %lf、%le、%lg %f、%e、%g
-- long double 96 +/- 1.79769e+308 %Lf、%Le、%Lg
#include<iostream>
#include <limits>
using namespace std; int main()
{
//bool
cout << "bool: \t\t" << "所占字节数：" << sizeof(bool);
cout << "\t最大值：" << (numeric_limits<bool>::max)();
cout << "\t\t最小值：" << (numeric_limits<bool>::min)() << endl;
//char
cout << "char: \t\t" << "所占字节数：" << sizeof(char);
cout << "\t最大值：" << (numeric_limits<char>::max)();
cout << "\t\t最小值：" << (numeric_limits<char>::min)() << endl;
//signed char
cout << "signed char: \t" << "所占字节数：" << sizeof(signed char);
cout << "\t最大值：" << (numeric_limits<signed char>::max)();
cout << "\t\t最小值：" << (numeric_limits<signed char>::min)() << endl;
//unsigned char
cout << "unsigned char: \t" << "所占字节数：" << sizeof(unsigned char);
cout << "\t最大值：" << (numeric_limits<unsigned char>::max)();
cout << "\t\t最小值：" << (numeric_limits<unsigned char>::min)() << endl;
//wchar_t
cout << "wchar_t: \t" << "所占字节数：" << sizeof(wchar_t);
cout << "\t最大值：" << (numeric_limits<wchar_t>::max)();
cout << "\t\t最小值：" << (numeric_limits<wchar_t>::min)() << endl;
//short
cout << "short: \t\t" << "所占字节数：" << sizeof(short);
cout << "\t最大值：" << (numeric_limits<short>::max)();
cout << "\t\t最小值：" << (numeric_limits<short>::min)() << endl;
//int
cout << "int: \t\t" << "所占字节数：" << sizeof(int);
cout << "\t最大值：" << (numeric_limits<int>::max)();
cout << "\t最小值：" << (numeric_limits<int>::min)() << endl;
//unsigned
cout << "unsigned: \t" << "所占字节数：" << sizeof(unsigned);
cout << "\t最大值：" << (numeric_limits<unsigned>::max)();
cout << "\t最小值：" << (numeric_limits<unsigned>::min)() << endl;
//long
cout << "long: \t\t" << "所占字节数：" << sizeof(long);
cout << "\t最大值：" << (numeric_limits<long>::max)();
cout << "\t最小值：" << (numeric_limits<long>::min)() << endl;
//unsigned long
cout << "unsigned long: \t" << "所占字节数：" << sizeof(unsigned long);
cout << "\t最大值：" << (numeric_limits<unsigned long>::max)();
cout << "\t最小值：" << (numeric_limits<unsigned long>::min)() << endl;
//float
cout << "float: \t\t" << "所占字节数：" << sizeof(float);
cout << "\t最大值：" << (numeric_limits<float>::max)();
cout << "\t最小值：" << (numeric_limits<float>::min)() << endl;
//size_t
cout << "size_t: \t" << "所占字节数：" << sizeof(size_t);
cout << "\t最大值：" << (numeric_limits<size_t>::max)();
cout << "\t最小值：" << (numeric_limits<size_t>::min)() << endl;
//double
cout << "double: \t" << "所占字节数：" << sizeof(double);
cout << "\t最大值：" << (numeric_limits<double>::max)();
cout << "\t最小值：" << (numeric_limits<double>::min)() << endl;
//long long
cout << "long long: \t" << "所占字节数：" << sizeof(long long);
cout << "\t最大值：" << (numeric_limits<long long>::max)();
cout << "\t最小值：" << (numeric_limits<long long>::min)() << endl;
//long double
cout << "long double: \t" << "所占字节数：" << sizeof(long double);
cout << "\t最大值：" << (numeric_limits<long double>::max)();
cout << "\t最小值：" << (numeric_limits<long double>::min)() << endl;
return 0;
}