{"id":111544,"date":"2026-10-01T11:21:54","date_gmt":"2026-10-01T03:21:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/111544.html"},"modified":"2026-10-01T11:21:54","modified_gmt":"2026-10-01T03:21:54","slug":"c11-%ef%bc%9a%e5%8f%b3%e5%80%bc%e5%bc%95%e7%94%a8%e7%9a%84%e4%bd%9c%e7%94%a8%ef%bc%8c%e5%bc%95%e7%94%a8%e6%8a%98%e5%8f%a0%e5%92%8c%e5%ae%8c%e7%be%8e%e8%bd%ac%e5%8f%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/111544.html","title":{"rendered":"C++11 \uff1a\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528\uff0c\u5f15\u7528\u6298\u53e0\u548c\u5b8c\u7f8e\u8f6c\u53d1"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

\n

\u4e00.\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528<\/p>\n

1.1\u4e3a\u4ec0\u4e48\u8981\u5f15\u5165\u53f3\u503c\u5f15\u7528？<\/p>\n

\u4e8c.\u7c7b\u578b\u5206\u7c7b（\u4e86\u89e3）<\/p>\n

\u4e09.\u5f15\u7528\u6298\u53e0<\/p>\n

\u56db.\u5b8c\u7f8e\u8f6c\u53d1<\/p>\n

\n

\u4e00.\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528<\/h2>\n

\u56de\u987e\u5de6\u503c\u5f15\u7528\u7684\u4f5c\u7528：<\/p>\n

  • \u5145\u5f53\u522b\u540d，\u907f\u514d\u62f7\u8d1d，\u76f4\u63a5\u7ed1\u5b9a\u5de6\u503c，\u64cd\u4f5c\u540c\u4e00\u5757\u5185\u5b58；<\/li>\n
  • \u5141\u8bb8\u4fee\u6539\u539f\u59cb\u5bf9\u8c61；<\/li>\n
  • \u51fd\u6570\u53ef\u4ee5\u5411\u5916\u5e26\u51fa\u4fee\u6539\u7ed3\u679c（\u8f93\u51fa\u578b\u53c2\u6570）；<\/li>\n
  • \u4f5c\u4e3a\u8fd4\u56de\u503c，\u4f7f\u8868\u8fbe\u5f0f\u6210\u4e3a\u5de6\u503c，\u652f\u6301\u8fde\u7eed\u8d4b\u503c（\u5982 operator[]）；<\/li>\n

    1.1\u4e3a\u4ec0\u4e48\u8981\u5f15\u5165\u53f3\u503c\u5f15\u7528？<\/h3>\n

    \u901a\u8fc7\u91cd\u8f7d\u533a\u5206\u5de6\u53f3\u503c，\u9488\u5bf9\u5373\u5c06\u9500\u6bc1\u7684\u53f3\u503c\u5b9e\u73b0\u79fb\u52a8\u8bed\u4e49，\u8f6c\u79fb\u8d44\u6e90\u800c\u4e0d\u62f7\u8d1d\u6570\u636e，\u6d88\u9664\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u590d\u5236\u5f00\u9500\u3002<\/p>\n

    \u6bd4\u5982：<\/p>\n

    \"\"<\/p>\n

    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u4f20\u503c\u8fd4\u56de\u9700\u8981\u521b\u5efa\u4e34\u65f6\u5bf9\u8c61，\u7136\u540e\u518d\u62f7\u8d1d\u5230\u5916\u9762，\u8fd9\u4f1a\u9020\u6210\u4e24\u6b21\u6784\u9020，\u5bfc\u81f4\u8d44\u6e90\u6d6a\u8d39，\u90a3\u4e48\u5c31\u6709\u540c\u5b66\u8bf4\u4e86，\u73b0\u5728\u7f16\u8bd1\u5668\u90fd\u4f18\u5316\u4e86，\u6784\u9020\u51cf\u5c11\u4e86，\u8d44\u6e90\u6d6a\u8d39\u5c31\u5c11\u4e86，\u8fd8\u6709\u5fc5\u8981\u7528\u5230\u53f3\u503c\u5f15\u7528\u5417？\u6211\u4eec\u5148\u4e86\u89e3\u4e3a\u4ec0\u4e48\u7f16\u8bd1\u5668\u8981\u4f18\u5316<\/p>\n

    \u4f20\u7edf\u53ea\u6709\u5de6\u503c\u5f15\u7528\u4f20\u503c\u4f20\u53c2\u4e2d\u4e3a\u4e86\u907f\u514d\u9020\u6210\u8d44\u6e90，\u901a\u5e38\u7528\u4e0b\u9762\u8fd9\u79cd\u65b9\u6cd5\u6765\u5199：<\/p>\n

    \u5f62\u53c2\u7528\u5f15\u7528\u6765\u63a5\u6536，\u6539\u53d8\u5f62\u53c2\u7684\u540c\u65f6\u5c31\u53ef\u4ee5\u6539\u53d8\u5916\u9762\u5143\u7d20\u4e86，\u4f46\u662f\u8fd9\u91cc\u7f3a\u5c11\u53ef\u8bfb\u6027，\u6240\u4ee5\u7f16\u8bd1\u5668\u8981\u8fdb\u884c\u4f18\u5316\u6765\u89e3\u51b3\u8be5\u95ee\u9898<\/p>\n

    \"\"<\/p>\n

    \u518d\u8bb2\u4e4b\u524d\u6211\u4eec\u5148\u6765\u4e86\u89e3\u4e00\u4e0b\u4ec0\u4e48\u662f\u62f7\u8d1d\u6784\u9020，\u62f7\u8d1d\u8d4b\u503c，\u79fb\u52a8\u6784\u9020\u548c\u79fb\u52a8\u8d4b\u503c<\/span><\/p>\n

    \"\"<\/p>\n\n\u51fd\u6570\u51fd\u6570\u7b7e\u540d\u65f6\u673a\u6570\u636e\u6e90\u7c7b\u578b\u6838\u5fc3\u884c\u4e3a<\/tr>\n\n\n\n\n\n
    \u62f7\u8d1d\u6784\u9020<\/td>\nstring(const string& s)<\/td>\n\u521b\u5efa\u65b0\u5bf9\u8c61（\u521d\u59cb\u5316\u9636\u6bb5）<\/td>\n\u5de6\u503c \/const \u5de6\u503c<\/td>\n\u6df1\u62f7\u8d1d，\u65b0\u5efa\u5185\u5b58\u590d\u5236\u5b57\u7b26<\/td>\n<\/tr>\n
    \u79fb\u52a8\u6784\u9020<\/td>\nstring(string&& s)<\/td>\n\u521b\u5efa\u65b0\u5bf9\u8c61（\u521d\u59cb\u5316\u9636\u6bb5）<\/td>\n\u53f3\u503c（\u4e34\u65f6\u3001std::move）<\/td>\n\u8d44\u6e90\u8f6c\u79fb，swap，\u4e0d\u62f7\u8d1d\u6570\u636e<\/td>\n<\/tr>\n
    \u62f7\u8d1d\u8d4b\u503c<\/td>\nstring& operator=(const string& s)<\/td>\n\u5bf9\u8c61\u5df2\u5b58\u5728，\u8d4b\u503c\u8986\u76d6<\/td>\n\u5de6\u503c \/const \u5de6\u503c<\/td>\n\u91ca\u653e\u81ea\u8eab\u65e7\u8d44\u6e90，\u6df1\u62f7\u8d1d\u65b0\u6570\u636e<\/td>\n<\/tr>\n
    \u79fb\u52a8\u8d4b\u503c<\/td>\nstring& operator=(string&& s)<\/td>\n\u5bf9\u8c61\u5df2\u5b58\u5728，\u8d4b\u503c\u8986\u76d6<\/td>\n\u53f3\u503c（\u4e34\u65f6\u3001std::move）<\/td>\nswap \u8f6c\u79fb\u8d44\u6e90，\u65e0\u6570\u636e\u62f7\u8d1d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u603b\u7ed3：\u62f7\u8d1d\u6784\u9020\u548c\u62f7\u8d1d\u8d4b\u503c\u9700\u8981\u6d88\u8017\u8d44\u6e90，\u79fb\u52a8\u6784\u9020\u548c\u79fb\u52a8\u8d4b\u503c\u4e0d\u9700\u8981\u6d88\u8017\u8d44\u6e90<\/span><\/p>\n

    \u7ed9\u51fa\u4e0b\u5217\u4ee3\u7801\u662f\u4e3a\u4e86\u548c\u5e93\u91cc\u505a\u533a\u5206，\u53ef\u5e2e\u52a9\u6211\u4eec\u770b\u51fa\u8c03\u7528\u4e86\u90a3\u4e9b\u6784\u9020<\/p>\n

    namespace Jam
    \n{
    \n class string
    \n {
    \n public:
    \n typedef char* iterator;
    \n typedef const char* const_iterator;<\/p>\n

    iterator begin()
    \n {
    \n return _str;
    \n }
    \n iterator end()
    \n {
    \n return _str + _size;
    \n }<\/p>\n

    const_iterator begin() const
    \n {
    \n return _str;
    \n }<\/p>\n

    const_iterator end() const
    \n {
    \n return _str + _size;
    \n }<\/p>\n

    string(const char* str = "")
    \n :_size(strlen(str))
    \n , _capacity(_size)
    \n {
    \n \/\/cout << "string(char* str)-\u6784\u9020" << endl;
    \n _str = new char[_capacity + 1];
    \n strcpy(_str, str);
    \n }<\/p>\n

    void swap(string& s)
    \n {
    \n ::swap(_str, s._str);
    \n ::swap(_size, s._size);
    \n ::swap(_capacity, s._capacity);
    \n }<\/p>\n

    \/\/ \u62f7\u8d1d\u6784\u9020
    \n string(const string& s)
    \n {
    \n \/\/cout << "string(const string& s) — \u62f7\u8d1d\u6784\u9020" << endl;<\/p>\n

    reserve(s._capacity);
    \n for (auto ch : s)
    \n {
    \n push_back(ch);
    \n }
    \n }<\/p>\n

    \/\/ \u79fb\u52a8\u6784\u9020
    \n string(string&& s)
    \n {
    \n \/\/cout << "string(string&& s) — \u79fb\u52a8\u6784\u9020" << endl;
    \n swap(s);
    \n }<\/p>\n

    string& operator=(const string& s)
    \n {
    \n \/\/cout << "string& operator=(const string& s) — \u62f7\u8d1d\u8d4b\u503c" << endl;
    \n if (this != &s)
    \n {
    \n _str[0] = '\\\\0';
    \n _size = 0;<\/p>\n

    reserve(s._capacity);
    \n for (auto ch : s)
    \n {
    \n push_back(ch);
    \n }
    \n }<\/p>\n

    return *this;
    \n }<\/p>\n

    \/\/ \u79fb\u52a8\u8d4b\u503c
    \n string& operator=(string&& s)
    \n {
    \n \/\/cout << "string& operator=(string&& s) — \u79fb\u52a8\u8d4b\u503c" << endl;
    \n swap(s);
    \n return *this;
    \n }<\/p>\n

    ~string()
    \n {
    \n \/\/cout << "~string() — \u6790\u6784" << endl;
    \n delete[] _str;
    \n _str = nullptr;
    \n }<\/p>\n

    char& operator[](size_t pos)
    \n {
    \n assert(pos < _size);
    \n return _str[pos];
    \n }<\/p>\n

    void reserve(size_t n)
    \n {
    \n if (n > _capacity)
    \n {
    \n char* tmp = new char[n + 1];
    \n if (_str)
    \n {
    \n strcpy(tmp, _str);
    \n delete[] _str;
    \n }
    \n _str = tmp;
    \n _capacity = n;
    \n }
    \n }<\/p>\n

    void push_back(char ch)
    \n {
    \n if (_size >= _capacity)
    \n {
    \n size_t newcapacity = _capacity == 0 ? 4 : _capacity * 2;
    \n reserve(newcapacity);
    \n }<\/p>\n

    _str[_size] = ch;
    \n ++_size;
    \n _str[_size] = '\\\\0';
    \n }<\/p>\n

    string& operator+=(char ch)
    \n {
    \n push_back(ch);
    \n return *this;
    \n }<\/p>\n

    const char* c_str() const
    \n {
    \n return _str;
    \n }<\/p>\n

    size_t size() const
    \n {
    \n return _size;
    \n }
    \n private:
    \n char* _str = nullptr;
    \n size_t _size = 0;
    \n size_t _capacity = 0;
    \n };<\/p>\n

    \/\/ \u4f20\u503c\u8fd4\u56de\u9700\u8981\u62f7\u8d1d
    \n string addStrings(string num1, string num2,string& str) {
    \n \/\/string str;
    \n int end1 = num1.size() – 1, end2 = num2.size() – 1;
    \n \/\/ \u8fdb\u4f4d
    \n int next = 0;
    \n while (end1 >= 0 || end2 >= 0)
    \n {
    \n int val1 = end1 >= 0 ? num1[end1–] – '0' : 0;
    \n int val2 = end2 >= 0 ? num2[end2–] – '0' : 0;
    \n int ret = val1 + val2 + next;
    \n next = ret \/ 10;
    \n ret = ret % 10;
    \n str += ('0' + ret);
    \n }
    \n if (next == 1)
    \n str += '1';
    \n reverse(str.begin(), str.end());<\/p>\n

    return str;
    \n }
    \n} <\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    \u6ce8：<\/p>\n

    \u56fe\u4e00\u662f\u5728Linux\u4e0a\u4e0d\u5e26\u4f18\u5316\u8fd0\u884c\u7684\u7ed3\u679c，\u56fe\u4e8c\u662f\u4e00\u4ee3\u7f16\u8bd1\u5668\u4f18\u5316\u7684\u7ed3\u679c，\u56fe\u4e09\u662f\u4e8c\u4ee3\u7f16\u8bd1\u5668\u4f18\u5316\u540e\u7684\u7ed3\u679c<\/p>\n

    \u7ea2\u8272\u6846：\u5916\u90e8\u4f20\u5165\u51fd\u6570\u65f6\u9700\u8981\u521b\u5efa\u4e34\u65f6\u5bf9\u8c61\u8c03\u7528\u6784\u9020\u7136\u540e\u8fdb\u884c\u62f7\u8d1d\u6784\u9020，\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u7f16\u8bd1\u5668\u4f18\u5316\u540e\u76f4\u63a5\u5408\u4e8c\u4e3a\u4e00\u6ca1\u6709\u62f7\u8d1d\u6784\u9020\u4e86<\/p>\n

    \u7eff\u8272\u6846：\u51fd\u6570\u91cc\u9762\u4e34\u65f6\u53d8\u91cf\u7684\u6784\u9020<\/p>\n

    \u84dd\u8272\u6846：\u4f20\u503c\u8fd4\u56de\u65f6\u8c03\u7528\u7684\u662f\u6784\u9020\u51fd\u6570\u521b\u5efa\u4e34\u65f6\u5bf9\u8c61，\u7136\u540e\u518d\u8fdb\u884c\u62f7\u8d1d\u6784\u9020，\u540e\u9762\u53ef\u4ee5\u770b\u51fa\u4e0d\u65ad\u88ab\u4f18\u5316，\u751a\u81f3\u6700\u540e\u53ea\u521b\u5efa\u4e86\u4e34\u65f6\u5bf9\u8c61，\u91cc\u9762\u7684\u5c40\u90e8\u5bf9\u8c61\u90fd\u6ca1\u6709\u521b\u5efa<\/p>\n

    \u53f3\u503c\u5f15\u7528\u6709\u79fb\u52a8\u6784\u9020\u7684\u573a\u666f：<\/span><\/p>\n

    \"\"<\/p>\n

    \u901a\u8fc7\u89c2\u5bdf\u6700\u540e\u4e00\u5f20\u56fe，\u6709\u4eba\u5c31\u4f1a\u8bf4，\u65e2\u7136\u7f16\u8bd1\u5668\u90fd\u4f18\u5316\u4e86，\u6700\u540e\u53ea\u5269\u6784\u9020，\u90a3\u8fd8\u8981\u79fb\u52a8\u6784\u9020\u5e72\u4ec0\u4e48？<\/p>\n

    1.\u4e0d\u540c\u7f16\u8bd1\u5668\u5bf9\u4f18\u5316\u4e5f\u4e0d\u7edf\u4e00，\u6709\u4e9b\u7f16\u8bd1\u5668\u4f18\u5316，\u6709\u4e9b\u7f16\u8bd1\u5668\u4e0d\u4f18\u5316，\u6240\u4ee5\u8fd8\u662f\u6709\u5fc5\u8981\u7528\u5230\u79fb\u52a8\u6784\u9020\u7684<\/p>\n

    2.\u4e0b\u9762\u7684\u79fb\u52a8\u8d4b\u503c\u53ef\u4ee5\u4f53\u73b0\u51fa\u53f3\u503c\u5f15\u7528\u7684\u4ef7\u503c<\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    \u6ce8：<\/p>\n

    \u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u867d\u7136\u7f16\u8bd1\u5668\u6709\u4f18\u5316，\u4f46\u662f\u8fd8\u662f\u4f1a\u6709\u62f7\u8d1d\u8d4b\u503c\u8fd9\u79cd\u60c5\u51b5，\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u6709\u79fb\u52a8\u8d4b\u503c\u7684\u60c5\u51b5<\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    \u867d\u7136\u8fd9\u91cc\u6700\u540e\u4e5f\u6709\u79fb\u52a8\u8d4b\u503c，\u4f46\u662f\u76f8\u6bd4\u8f83\u4e8e\u62f7\u8d1d\u8d4b\u503c，\u79fb\u52a8\u8d4b\u503c\u4e0d\u6d88\u8017\u8d44\u6e90，\u6240\u4ee5\u8fd8\u662f\u6709\u4ef7\u503c\u7684<\/p>\n

    \u6df1\u62f7\u8d1d\u7684\u81ea\u5b9a\u4e49\u7c7b\u578b：\u5982 vector\/string\/map…. \u5b9e\u73b0\u79fb\u52a8\u6784\u9020\u548c\u79fb\u52a8\u8d4b\u503c\u662f\u6709\u5f88\u5927\u7684\u4ef7\u503c\u7684<\/span><\/p>\n

    \u6d45\u62f7\u8d1d\u7684\u81ea\u5b9a\u4e49\u7c7b\u578b：\u5982 Date\/pair<int, int>….\u4e0d\u9700\u8981\u5b9e\u73b0\u79fb\u52a8\u6784\u9020\u548c\u79fb\u52a8\u8d4b\u503c\u3002<\/span><\/p>\n

    \u4e8c.\u7c7b\u578b\u5206\u7c7b（\u4e86\u89e3）<\/h2>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    \u4e09.\u5f15\u7528\u6298\u53e0<\/h2>\n

    \u51fa\u73b0\u573a\u666f：<\/p>\n

    \u53ea\u6709\u6a21\u677f \/ \u4e07\u80fd\u5f15\u7528（T&&）\u63a8\u5bfc\u7684\u65f6\u5019\u624d\u4f1a\u53d1\u751f\u5f15\u7528\u6298\u53e0！ \u666e\u901a\u4ee3\u7801\u624b\u52a8\u5199 int& && \u76f4\u63a5\u7f16\u8bd1\u62a5\u9519，\u4e0d\u5b58\u5728\u6298\u53e0\u3002<\/p>\n

    \u5f53\u7c7b\u578b\u63a8\u5bfc\u4ea7\u751f\u5f15\u7528\u53e0\u52a0\u65f6，\u9075\u5faa：<\/p>\n

    \u53ea\u8981\u5b58\u5728\u5de6\u503c\u5f15\u7528 &，\u7ed3\u679c\u6700\u7ec8\u5c31\u662f\u5de6\u503c\u5f15\u7528 &； \u53ea\u6709\u4e24\u4e2a\u90fd\u662f\u53f3\u503c\u5f15\u7528 &&，\u7ed3\u679c\u624d\u662f\u53f3\u503c\u5f15\u7528 &&<\/p>\n

  • T& & \u2192 T&<\/li>\n
  • T& && \u2192 T&<\/li>\n
  • T&& & \u2192 T&<\/li>\n
  • T&& &&\u2192 T&&<\/li>\n

    \u53e3\u8bc0：\u5de6\u503c\u5f15\u7528\u4f20\u67d3，\u9047 & \u5f97 &；\u5168 && \u624d\u662f &&<\/p>\n

    \"\"<\/p>\n

    \u4e07\u80fd\u6a21\u677f：<\/span><\/p>\n

    \"\"<\/p>\n

    template<class T>
    \nvoid Function(T&& t)
    \n{
    \n int a = 0;
    \n T x = a;
    \n \/\/x++; \/\/ \u90e8\u5206\u573a\u666f\u4e0bT\u5e26const，\u6253\u5f00\u4f1a\u62a5\u9519
    \n}
    \nint main()
    \n{
    \n \/\/ \u573a\u666f1：\u4f20\u5165\u53f3\u503c 10
    \n Function(10);
    \n \/\/ 10\u662f\u7eaf\u53f3\u503c \u2192 T\u63a8\u5bfc\u4e3a int
    \n \/\/ T&& = int&& \u2192 \u5b9e\u4f8b\u5316：void Function(int&& t)<\/p>\n

    \/\/ \u573a\u666f2：\u4f20\u5165\u666e\u901a\u5de6\u503c\u53d8\u91cf a
    \n int a;
    \n Function(a);
    \n \/\/ a\u662f\u5de6\u503c \u2192 T\u63a8\u5bfc\u4e3a int&
    \n \/\/ T&& = int& && \u2192\u3010\u5f15\u7528\u6298\u53e0\u3011\u2192 int&
    \n \/\/ \u5b9e\u4f8b\u5316：void Function(int& t)<\/p>\n

    \/\/ \u573a\u666f3：std::move(a) \u4ea1\u503c（\u53f3\u503c）
    \n Function(std::move(a));
    \n \/\/ move(a)\u662f\u53f3\u503c \u2192 T\u63a8\u5bfc\u4e3a int
    \n \/\/ T&& = int&& \u2192 void Function(int&& t)<\/p>\n

    \/\/ \u573a\u666f4：const\u5de6\u503c const int b
    \n const int b = 8;
    \n Function(b);
    \n \/\/ const\u5de6\u503c \u2192 T\u63a8\u5bfc\u4e3a const int&
    \n \/\/ T&& = const int& && \u2192 \u6298\u53e0 \u2192 const int&
    \n \/\/ \u5b9e\u4f8b\u5316 void Function(const int& t)
    \n \/\/ T = const int&，\u6240\u4ee5 T x = a; \u5f97\u5230 const int& x；x\u4e0d\u53ef\u4fee\u6539，x++\u7f16\u8bd1\u62a5\u9519<\/p>\n

    \/\/ \u573a\u666f5：std::move(b) const\u53f3\u503c
    \n Function(std::move(b));
    \n \/\/ move(const\u53d8\u91cf) \u662fconst\u53f3\u503c
    \n \/\/ T\u63a8\u5bfc\u4e3a const int
    \n \/\/ T&& = const int&&
    \n \/\/ T = const int，T x = a \u2192 const int x；\u4f9d\u7136\u4e0d\u80fdx++
    \n return 0;
    \n}<\/p>\n

    \u4e07\u80fd\u5f15\u7528\u63a8\u5bfc\u89c4\u5f8b（\u80cc\u8bf5）<\/p>\n

    \u8c03\u7528 Function(arg)<\/p>\n

  • arg \u662f\u975e const \u5de6\u503c \u2192 T = \u7c7b\u578b& \u2192 \u6298\u53e0 \u2192 \u53c2\u6570 \u7c7b\u578b&（\u5de6\u503c\u5f15\u7528）<\/li>\n
  • arg \u662f const \u5de6\u503c \u2192 T = const \u7c7b\u578b& \u2192 \u6298\u53e0 \u2192 \u53c2\u6570 const \u7c7b\u578b&<\/li>\n
  • arg \u662f\u53f3\u503c（\u7eaf\u53f3\u503c \/std::move \u4ea1\u503c） \u2192 T = \u7c7b\u578b \u2192 \u53c2\u6570 \u7c7b\u578b&&<\/li>\n
  • arg \u662f const \u53f3\u503c \u2192 T = const \u7c7b\u578b \u2192 \u53c2\u6570 const \u7c7b\u578b&&<\/li>\n

    \u4f20\u5de6\u503c，T \u63a8\u5bfc\u6210\u5f15\u7528\u7c7b\u578b；\u4f20\u53f3\u503c，T \u63a8\u5bfc\u6210\u666e\u901a\u503c\u7c7b\u578b\u3002<\/span><\/p>\n

    \u56db.\u5b8c\u7f8e\u8f6c\u53d1<\/h2>\n

    \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u76ee\u5f55 \u4e00.\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528
    \n1.1\u4e3a\u4ec0\u4e48\u8981\u5f15\u5165\u53f3\u503c\u5f15\u7528？
    \n\u4e8c.\u7c7b\u578b\u5206\u7c7b（\u4e86\u89e3）
    \n\u4e09.\u5f15\u7528\u6298\u53e0
    \n\u56db.\u5b8c\u7f8e\u8f6c\u53d1 \u4e00.\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528
    \n\u56de\u987e\u5de6\u503c\u5f15\u7528\u7684\u4f5c\u7528：
    \n\u5145\u5f53\u522b\u540d，\u907f\u514d\u62f7\u8d1d，\u76f4\u63a5\u7ed1\u5b9a\u5de6\u503c，\u64cd\u4f5c\u540c\u4e00\u5757\u5185\u5b58；\u5141\u8bb8\u4fee\u6539\u539f\u59cb\u5bf9\u8c61；\u51fd\u6570\u53ef\u4ee5\u5411\u5916\u5e26\u51fa\u4fee\u6539\u7ed3\u679c（\u8f93\u51fa\u578b\u53c2\u6570）；\u4f5c\u4e3a\u8fd4\u56de\u503c，\u4f7f\u8868\u8fbe\u5f0f\u6210\u4e3a\u5de6\u503c&<\/p>\n","protected":false},"author":2,"featured_media":111529,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-111544","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"yoast_head":"\nC++11 \uff1a\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528\uff0c\u5f15\u7528\u6298\u53e0\u548c\u5b8c\u7f8e\u8f6c\u53d1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/111544.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++11 \uff1a\u53f3\u503c\u5f15\u7528\u7684\u4f5c\u7528\uff0c\u5f15\u7528\u6298\u53e0\u548c\u5b8c\u7f8e\u8f6c\u53d1 - 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