1.类型与变量相关 1.1.nullptr: 取代了NULL,专用于空指针 1.2.constexpr: 近似const, 可以修饰变量,也可以修饰函数, 修饰变量如: const int global = 100; int main () { int temp = 100: constexpr int a = 1; //right constexpr int b = global; //right constexpr int c = temp; //wrong } 既可以赋值字面常量也可以赋值
1.类型与变量相关 1.1.nullptr: 取代了NULL,专用于空指针 1.2.constexpr: 近似const, 可以修饰变量,也可以修饰函数, 修饰变量如: const int global = 100; int main () { int temp = 100: constexpr int a = 1; //right constexpr int b = global; //right constexpr int c = temp; //wrong } 既可以赋值字面常量也可以赋值
C语言提供了几个标准库函数,可以将任意类型(整型.长整型.浮点型等)的数字转换为字符串. 以下是用itoa()函数将整数转换为字符串的一个例子:# include <stdio.h># include <stdlib.h>void main (void){int num = 100;char str[25];itoa(num, str, 10);printf("The number 'num' is %d and the string 'str' is %s. \n&qu
1.题目大意 Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output “Buzz”. For numbers which are multiples of both three
C语言提供了几个标准库函数C语言提供了几个标准库函数,可以将任意类型(整型.长整型.浮点型等)的数字转换为字符串.以下是用itoa()函数将整数转换为字符串的一个例子: # include <stdio.h> # include <stdlib.h> void main (void) { ; ]; itoa(num, str, ); printf("The number 'num' is %d and the string 'str' is %s. \n" ,
http://c.biancheng.net/cpp/html/792.html C语言提供了几个标准库函数,可以将任意类型(整型.长整型.浮点型等)的数字转换为字符串. 以下是用itoa()函数将整数转换为字符串的一个例子: # include <stdio.h> # include <stdlib.h> void main (void) { int num = 100; char str[25]; itoa(num, str, 10); printf("The num
Quote from: http://www.cplusplus.com/reference/cstdlib/itoa/ function Required header : <stdlib.h> itoa char * itoa ( int value, char * str, int base ); Convert integer to string (non-standard function) Converts an integer value to a null-ter