7.1 字符串1

左手的ㄟ右手 2022-05-19 00:12 122阅读 0赞

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#include<iostream>
    using namespace std;
    int main()
    {
    	cout << sizeof("C program") << endl;//10,'\0'会占据一个字节 
    	return 0;
    }

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#include<iostream>
    using namespace std;
    int main()
    {
    	cout << "He said:\"I am a stu\\dent.\"" << endl;
    	return 0; 
    }

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#include<iostream>
    #include<cstring>//strcmp,strcpy
    using namespace std;
    int main()
    {
    	char title[] = "Prison Break";//title最后一个元素为‘\0’
    	char hero[100] = "Michael Scofied";
    	char prisonName[100];
    	char response[100];
    	cout << "What's the name of the prison in" << title << endl;
    	cin >> prisonName;
    	if(strcmp(prisonName, "Fox-River")==0)
    		cout << "Yeah! Do you love " << hero << endl;
    	else
    	{
    		strcpy(response, "It seems you haven't watched it!\n");
    		cout << response;
    	} 
    	title[0] = 't';
    	title[3] = 0;//0相当于'\0'，'\0'的ASCII码为0 
    	cout << title << endl;
    	return 0;
    }

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【strcmp】C/C++函数，比较两个字符串

设这两个字符串为str1，str2，

若str1==str2，则返回零；

若str1<str2，则返回负数；

若str1>str2，则返回正数。

如：  
strcmp(“abcd”,”abcd”)的返回值是 0；  
strcmp(“abcd”,”dcba”)的返回值是 -1；  
strcmp(“dcba”,”abcd”)的返回值是 1；

按照字典序比较。

参考链接：[https://blog.csdn.net/u011028345/article/details/76571569][https_blog.csdn.net_u011028345_article_details_76571569]

【strcpy】 参考链接：[https://blog.csdn.net/jiangliuzheng/article/details/8440085][https_blog.csdn.net_jiangliuzheng_article_details_8440085]

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[https_blog.csdn.net_u011028345_article_details_76571569]: https://blog.csdn.net/u011028345/article/details/76571569
[https_blog.csdn.net_jiangliuzheng_article_details_8440085]: https://blog.csdn.net/jiangliuzheng/article/details/8440085
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