考虑一个字符串 str。语法是: str.pop_back(); 参数 该函数不包含任何参数。 返回值 此函数不返回任何值。 例子1 让我们看一个简单的例子。 #include<iostream>usingnamespacestd;intmain(){stringstr ="javac"; str.pop_back();cout<<str;return0; } 输出: java...
Erases the last character of the basic_string, effectively reducing its length by one.Parameters noneReturn value noneExample 1234567891011 // string::pop_back #include <iostream> #include <string> int main () { std::string str ("hello world!"); str.pop_back(); std::cout << str << ...
B. <string> C. <vector> D. <algorithm> Show Answer 4. Can pop_back() be used on std::wstring? A. Yes B. No C. Only in C++11 D. Only for wide characters Show Answer 5. What is the time complexity of pop_back() in C++ strings? A. O(1) B. O(n) C....
{std::deque<char>a={'A','B','C','D'};a.pop_back();a.pop_back();std::cout<<"Deque after pop_back(): ";for(autox=a.begin();x!=a.end();++x){std::cout<<*x<<" ";}std::cout<<std::endl;return0;} Output If we run the above code it will generate the following ou...
The C++ list::pop_back function is used to delete the last element of the list. Every deletion of element results into reducing the container size by one ...
#include<string> #include<algorithm> using namespace std; int main() { string s; getline(cin,s);//读入string reverse(s.begin(),s.end()); cout<<s<<endl; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. ...
C语言:【动态顺序表】动态顺序表的初始化、打印、尾插PushBack、尾删PopBack #include<stdio.h> #include<stdlib.h> #include<assert.h> #include<string.h> #include<malloc.h>typedef int DateType;typedef struct SeqList { DateType *arr; size_t capacility; size_t size;...
string::clear 2019-12-23 17:41 −void clear() noexcept;功能:把string对象置为空 #include <iostream>#include <string> using namespace std; int main(){ char c; string str; cout &l... MoonXu 0 219 vector 2019-12-20 10:54 −Java Vector 类 Vector 类实现了一个动态数组。和 ArrayLis...
VSICurlFilesystemHandlerBase: make GetURLFromFilename() const Verified 7a7cb80 Use std::string::pop_back() instead of resize(size() - 1) Verified 81f5ed9 Use x.back() instead of x[x.size() - 1] Verified fb592bc View details rouault merged commit 4eeccba into OSGeo:master ...
C语言:【动态顺序表】动态顺序表的初始化、打印、尾插PushBack、尾删PopBack #include<stdio.h> #include<stdlib.h> #include<assert.h> #include<string.h> #include<malloc.h> typedef int DateType; typedef struct SeqList { & C语言 动态顺序表 ...