4.1 break和continue语句

た入场券 2022-05-20 05:16 297阅读 0赞

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【重点】break只能跳出直接包含它的那一重循环。

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#include<cstdio>
    #include<iostream>
    using namespace std;
    int main()
    {
    	int n, m;
    	cin >> n >> m;
    	int a = m + 1, b = m + 1;
    	for (int i = n; i <= m-1; ++i)//弟数 
    	{
    		if(i > ((a + b)/2+1)) break; 
    		for(int j = i + 1; j <= m; j++)//兄数 
    		{
    			if( (i + j) > (a + b)) break;
    			if ((i * j) % (i + j) == 0)//如果满足条件 
    			{
    				if ((i + j) < (a + b))//和更小就更新 
    				{
    					a = i;
    					b = j;
    				}
    				else if((i + j) == (a + b) && i < a)//当和相等时，弟数更小更新 
    				{
    					a = i;
    					b = j;
    				} 
    			 } 	
    		}
    		
    	}
    	if (a == (m + 1))//没找到 
    	 	cout << "No solutin." << endl;	
            else
    		cout << a << "," << b << endl;
    	return 0; 
    }

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输出1-10以内的所有偶数（用continue）

#include<iostream>
    #include<cstdio>
    using namespace std;
    int main()
    {
    	for (int i = 1; i <= 10; ++i)
    	{
    		if (i % 2 == 1)
    			continue;
    		else 
    			cout << i << endl;
    	}
    	return 0;
    }

break：跳出最近的一重循环；

continue: 终止本次循环，也是对直接包含它的那重循环起作用。

[70]: https://img-blog.csdn.net/20180712225158668?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
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[70 2]: /images/20220520/beb4f1e82d42451a91641ce3d058f562.png
[70 3]: https://img-blog.csdn.net/20180712225219393?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[70 4]: /images/20220520/75fcaffd547c445d9f624225053803fb.png
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[70 6]: https://img-blog.csdn.net/20180712225233505?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[70 7]: /images/20220520/d3390b98ac434b8ba3ca8c7e76a0e055.png
[70 8]: https://img-blog.csdn.net/20180712225244283?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[70 9]: /images/20220520/ee3703bdc7dd49bdb745add4dbd40f8c.png