{"id":879,"date":"2023-02-28T16:56:40","date_gmt":"2023-10-26T03:31:52","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e6%96%87%e5%ad%97%e5%88%97%e9%80%a3%e7%b5%90%ef%bc%9a%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e9%80%a3%e7%b5%90%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae4\/"},"modified":"2025-08-01T03:13:14","modified_gmt":"2025-07-31T18:13:14","slug":"c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e6%96%87%e5%ad%97%e5%88%97%e9%80%a3%e7%b5%90%ef%bc%9a%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e9%80%a3%e7%b5%90%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e6%96%87%e5%ad%97%e5%88%97%e9%80%a3%e7%b5%90%ef%bc%9a%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e9%80%a3%e7%b5%90%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae4\/","title":{"rendered":"C++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u9023\u7d50\uff1a\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306e4\u3064\u306e\u65b9\u6cd5"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001C++\u8a00\u8a9e\u3067\u6587\u5b57\u5217\u306e\u9023\u7d50\u3092\u884c\u3046\u69d8\u3005\u306a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u3055\u307e\u3056\u307e\u306a\u76ee\u7684\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4e00\u822c\u7684\u306b\u306f\u3001\u7570\u306a\u308b\u5834\u6240\u304b\u30892\u3064\u306e\u6587\u5b57\u5217\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4e00\u7dd2\u306b\u914d\u7f6e\u3059\u308b\u3068\u3044\u3046\u6982\u5ff5\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<hr \/>\n<h2>C++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u7d50\u5408\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n<p>C++\u3067\u6587\u5b57\u5217\u3092\u7d50\u5408\u3059\u308b\u969b\u306b\u306f\u3001\u6b21\u306e\u30c6\u30af\u30cb\u30c3\u30af\u304c\u8003\u616e\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li>C++ concatenate (+) operator<\/li>\n<li>The strcat() method<\/li>\n<li>C++ append() function<\/li>\n<li>Using C++ for loop for concatenation<\/li>\n<\/ul>\n<hr \/>\n<h3>1. \u6587\u5b57\u5217\u9023\u7d50\u306b\u304a\u3051\u308bC++\u306e\u300c+\u300d\u6f14\u7b97\u5b50<\/h3>\n<p>C++\u306e\u300c+\u300d\u6f14\u7b97\u5b50\u3092\u4f7f\u3048\u3070\u3001\u4e8c\u3064\u306e\u6587\u5b57\u5217\u3092\u7c21\u5358\u306b\u7d50\u5408\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u300c+\u300d\u6f14\u7b97\u5b50\u306f\u30012\u3064\u306e\u5165\u529b\u6587\u5b57\u5217\u3092\u8ffd\u52a0\u3057\u3066\u9023\u7d50\u3055\u308c\u305f\u65b0\u3057\u3044\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u6587\u6cd5:<\/p>\n<pre class=\"post-pre\"><code>string1 <span class=\"token operator\">+<\/span> string2<span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5348\u5f8c\u306e\u4f1a\u8b70\u306f\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\n\u5348\u5f8c\u306e\u30df\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u4e2d\u6b62\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;bits\/stdc++.h&gt;<\/span> <\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span> \r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n<span class=\"token punctuation\">{<\/span>   string str1<span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">,<\/span> str2<span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Enter String 1:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token operator\">&gt;&gt;<\/span>str1<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Enter String 2:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token operator\">&gt;&gt;<\/span>str2<span class=\"token punctuation\">;<\/span>\r\n    \r\n    string res <span class=\"token operator\">=<\/span> str1 <span class=\"token operator\">+<\/span> str2<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Concatenated String:\"<\/span><span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>res<span class=\"token punctuation\">;<\/span>\r\n    \r\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> \r\n<span class=\"token punctuation\">}<\/span> \r\n\r\n<\/code><\/pre>\n<p>\u51fa\u529b\uff1a<\/p>\n<pre class=\"post-pre\"><code>Enter String <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span>\r\nJournal\r\nEnter String <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>\r\nDev\r\nConcatenated String<span class=\"token operator\">:<\/span>\r\nJournalDev\r\n<\/code><\/pre>\n<hr \/>\n<h3>2. C++\u306estrcat()\u30e1\u30bd\u30c3\u30c9<\/h3>\n<p>C++\u306b\u306f\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306e\u7d44\u307f\u8fbc\u307f\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002strcat()\u30e1\u30bd\u30c3\u30c9\u306fC++\u3067\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>strcat()\u95a2\u6570\u306f\u3001char\u914d\u5217\u3092\u5165\u529b\u3068\u3057\u3066\u53d7\u3051\u53d6\u308a\u3001\u95a2\u6570\u306b\u6e21\u3055\u308c\u305f\u5165\u529b\u5024\u3092\u9023\u7d50\u3057\u307e\u3059\u3002<\/p>\n<p>\u6587\u6cd5\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token function\">strcat<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>array1<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>array2<span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u672c\u306f\u975e\u5e38\u306b\u8208\u5473\u6df1\u3044\u3067\u3059\u3002<br \/>\n\uff08Kono moto wa hij\u014dni ky\u014dmi fukai desu.\uff09<br \/>\n-&gt; \u3053\u306e\u672c\u306f\u975e\u5e38\u306b\u9762\u767d\u3044\u3067\u3059\u3002<br \/>\n\uff08Kono moto wa hij\u014dni omoshiroi desu.\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;bits\/stdc++.h&gt;<\/span> <\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span> \r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n<span class=\"token punctuation\">{<\/span>   \r\n    <span class=\"token keyword\">char<\/span> str1<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">\"Journal\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">char<\/span> str2<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">=<\/span> <span class=\"token string\">\"Dev\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    \r\n     \r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Concatenated String:\"<\/span><span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    \r\n    <span class=\"token function\">strcat<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">,<\/span> str2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>str1<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> \r\n<span class=\"token punctuation\">}<\/span> \r\n\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u30b5\u30a4\u30ba\u304c100\u6587\u5b57\u306echar\u914d\u5217str1\u3068str2\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3001char\u914d\u5217str1\u3068str2\u3092strcat()\u95a2\u6570\u306b\u6e21\u3057\u3066\u9023\u7d50\u3055\u308c\u305f\u6587\u5b57\u5217\u3092\u7d50\u679c\u3068\u3057\u3066\u5f97\u307e\u3057\u305f\u3002<\/p>\n<p>\u51fa\u529b:<\/p>\n<pre class=\"post-pre\"><code>Concatenated String<span class=\"token operator\">:<\/span>\r\nJournalDev\r\n<\/code><\/pre>\n<p>\u4f8b2\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;bits\/stdc++.h&gt;<\/span> <\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span> \r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n<span class=\"token punctuation\">{<\/span>   \r\n    <span class=\"token keyword\">char<\/span> str1<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> str2<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"Enter String 1:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token punctuation\">.<\/span><span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"Enter String 2:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token punctuation\">.<\/span><span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n     \r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Concatenated String:\"<\/span><span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    \r\n    <span class=\"token function\">strcat<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">,<\/span> str2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>str1<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> \r\n<span class=\"token punctuation\">}<\/span> \r\n\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001C++\u306egetline\uff08\uff09\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u6587\u5b57\u5217\u5165\u529b\u5024\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u6587\u5b57\u5358\u4f4d\u3067\u5165\u529b\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<p>\u51fa\u529b\uff1a<\/p>\n<pre class=\"post-pre\"><code>Enter String <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span>\r\nJournalDev<span class=\"token operator\">-<\/span>\r\nEnter String <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>\r\nPython\r\nConcatenated String<span class=\"token operator\">:<\/span>\r\nJournalDev<span class=\"token operator\">-<\/span>Python\r\n<\/code><\/pre>\n<hr \/>\n<h3>3. C++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u306e\u9023\u7d50\u306b\u304a\u3051\u308bappend()\u30e1\u30bd\u30c3\u30c9<\/h3>\n<p>C++\u306b\u306f\u3082\u3046\u4e00\u3064\u306e\u7d44\u307f\u8fbc\u307f\u30e1\u30bd\u30c3\u30c9\u3001append()\u304c\u3042\u308a\u307e\u3059\u3002append()\u30e1\u30bd\u30c3\u30c9\u306f\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u6587\u5b57\u5217\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u53d7\u3051\u53d6\u308a\u3001\u4ed6\u306e\u6587\u5b57\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u672b\u5c3e\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p>\u6587\u6cd5:<\/p>\n<pre class=\"post-pre\"><code>string1<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>string2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u4f8b\u3048\u3070:<\/p>\n<p>\u4eca\u65e5\u306f\u3068\u3066\u3082\u6691\u3044\u3067\u3059\u3002<br \/>\n\u304d\u3087\u3046\u306f\u3068\u3066\u3082\u6691\u3044\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30fc\u30c6\u30a3\u30fc\u306f\u6628\u65e5\u3042\u308a\u307e\u3057\u305f\u3002<br \/>\n\u30d1\u30fc\u30c6\u30a3\u30fc\u306f\u304d\u306e\u3046\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u79c1\u306f\u305d\u306e\u6620\u753b\u3092\u898b\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\n\u308f\u305f\u3057\u306f\u305d\u306e\u3048\u3044\u304c\u3092\u307f\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;bits\/stdc++.h&gt;<\/span> <\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span> \r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n<span class=\"token punctuation\">{<\/span>   string str1<span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">,<\/span> str2<span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Enter String 1:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token operator\">&gt;&gt;<\/span>str1<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Enter String 2:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cin<span class=\"token operator\">&gt;&gt;<\/span>str2<span class=\"token punctuation\">;<\/span>\r\n    \r\n    str1<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Concatenated String:\"<\/span><span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>str1<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> \r\n<span class=\"token punctuation\">}<\/span> \r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001str2\u3092append()\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6e21\u3057\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u3001append()\u95a2\u6570\u306f\u6587\u5b57\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8str2\u306e\u5185\u5bb9\u3092\u6587\u5b57\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8str1\u306e\u672b\u5c3e\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u6587\u5b57\u5217\u306e\u9023\u7d50\u306e\u76ee\u7684\u304c\u679c\u305f\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u51fa\u529b\uff1a<\/p>\n<pre class=\"post-pre\"><code>Enter String <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span>\r\nJournal\r\nEnter String <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>\r\nDev\r\nConcatenated String<span class=\"token operator\">:<\/span>\r\nJournalDev\r\n<\/code><\/pre>\n<h3>4. C++\u306efor\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3002<\/h3>\n<p>\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306b\u3001\u7d44\u307f\u8fbc\u307f\u95a2\u6570\u306e\u5fc5\u8981\u306a\u3057\u306bC++\u306efor\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u300c\u79c1\u306f\u65e5\u672c\u8a9e\u3092\u52c9\u5f37\u3057\u3066\u3044\u307e\u3059\u3002\u300d<br \/>\n\u3010\u307c\u304f\u306f\u306b\u307b\u3093\u3054\u3092\u3079\u3093\u304d\u3087\u3046\u3057\u3066\u3044\u307e\u3059\u3002\u3011<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;string.h&gt;<\/span><\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\r\n\t<span class=\"token keyword\">char<\/span> x<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"Journal\"<\/span><span class=\"token punctuation\">,<\/span> y<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"Dev\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"String 1:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>x<span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"String 2:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span>y<span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">int<\/span> p<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>p<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> x<span class=\"token punctuation\">[<\/span>p<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!=<\/span> <span class=\"token char\">'\\0'<\/span><span class=\"token punctuation\">;<\/span> p<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/pointing to the index of the last character of x<\/span>\r\n\t\r\n\t<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> q<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> y<span class=\"token punctuation\">[<\/span>q<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!=<\/span> <span class=\"token char\">'\\0'<\/span><span class=\"token punctuation\">;<\/span> q<span class=\"token operator\">++<\/span><span class=\"token punctuation\">,<\/span>p<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span>\r\n\t<span class=\"token punctuation\">{<\/span>\r\n\t\tx<span class=\"token punctuation\">[<\/span>p<span class=\"token punctuation\">]<\/span><span class=\"token operator\">=<\/span>y<span class=\"token punctuation\">[<\/span>q<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\t\r\n\t\r\n\tx<span class=\"token punctuation\">[<\/span>p<span class=\"token punctuation\">]<\/span><span class=\"token operator\">=<\/span><span class=\"token char\">'\\0'<\/span><span class=\"token punctuation\">;<\/span>\r\n    cout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"Concatenated String:\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span>x<span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t\r\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u3067\u306f\u3001\u4e3b\u306bx\u3068y\u306e2\u3064\u306echar\u914d\u5217\u306e\u5165\u529b\u3092\u53d7\u3051\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u79c1\u305f\u3061\u306f\u6587\u5b57\u5217\u306ex char\u914d\u5217\u3092\u30dd\u30a4\u30f3\u30bf\u5909\u6570p\u304cx\u306e\u6700\u5f8c\u306e\u6587\u5b57\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u3059\u307e\u3067\u30c8\u30e9\u30d0\u30fc\u30b9\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u308c\u304b\u3089\u3001\u79c1\u305f\u3061\u306f\u6587\u5b57\u914d\u5217y\u306e\u5165\u529b\u3092\u30c8\u30e9\u30d0\u30fc\u30b9\u3057\u3001y\u306e\u5404\u6587\u5b57\u3092x\u306b\u7d50\u5408\u3057\u307e\u3059\u3002<\/p>\n<p>\u6700\u7d42\u7684\u306b\u3001\u9023\u7d50\u3055\u308c\u305f\u6587\u5b57\u5217\u304c\u7d50\u679c\u3068\u3057\u3066\u542b\u307e\u308c\u308b\u3088\u3046\u306b\u3001char\u914d\u5217x\u306e\u6700\u5f8c\u306b\u30cc\u30eb\u6587\u5b57\uff08&#8217;\\0&#8217;\uff09\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p>\u51fa\u529b\uff1a<\/p>\n<pre class=\"post-pre\"><code>String <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span>\r\nJournal\r\nString <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>\r\nDev\r\nConcatenated String<span class=\"token operator\">:<\/span>\r\nJournalDev\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u3067\u306f\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fC++\u8a00\u8a9e\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306e\u69d8\u3005\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7406\u89e3\u3057\u307e\u3057\u305f\u3002<\/p>\n<hr \/>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<ul class=\"post-ul\">\n<li>Concatenate String in C++ &#8211; StackOverFlow<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001C++\u8a00\u8a9e\u3067\u6587\u5b57\u5217\u306e\u9023\u7d50\u3092\u884c\u3046\u69d8\u3005\u306a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u3055\u307e\u3056\u307e\u306a\u76ee\u7684\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4e00\u822c\u7684\u306b\u306f\u3001\u7570\u306a\u308b\u5834\u6240\u304b\u30892\u3064\u306e\u6587\u5b57\u5217\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4e00\u7dd2\u306b\u914d\u7f6e\u3059\u308b\u3068\u3044\u3046\u6982\u5ff5 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-879","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u9023\u7d50\uff1a\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u305f\u3081\u306e4\u3064\u306e\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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