C语言实用算法系列之冒泡排序、sizeof与strlen的区别

直接看代码

#include <stdio.h>
#include<string.h>
int main()
{
    
    
	//char s[10] = { 98,68,55,'-','x','y' }; // sizeof=10 strlen =6
	//char s[10] = "abc%78"; // 从常量区拷贝赋值，sizeof=10 strlen =6
	//char s[] = { 'a','b','c','\0' }; // sizeof=4 strlen=3
	//char s[] = "abcd%3"; // sizeof=7 strlen=6
	printf("sizeof(s)=%d\n", sizeof(s));
	printf("strlen(s)=%d\n", strlen(s));

	int a[10] = {
    
     31,40,21,23,6,9,25,11,3,8 };
	//冒泡排序
	int i = 0;
	while (i < 9)
	{
    
    
		int j = 0;
		while (j < 9-i) // 0...8
		{
    
    
			if (a[j] > a[j + 1])
			{
    
    
				int t = a[j];
				a[j] = a[j + 1];
				a[j + 1] = t;
			}
			++j;
		}
		++i;
	}
	i = 0;
	while (i < 10)
		printf("%d ", a[i++]);
}