初学者若想要删除std::vector内的element,第一个想到的就是用for loop,若该iterator的值是我要删的,就erase 1 //Compile OK, but run-time error!! 2 for(std::vector<int>::iterator iter=ivec.begin(); iter!=ivec.end();++iter) { 3 if(*iter==8) { 4 ivec.erase(iter); 5 } 6 } 以...
初学者若想要删除std::vector内的element,第一个想到的就是用for loop,若该iterator的值是我要删的,就erase 1 //Compile OK, but run-time error!! 2 for(std::vector<int>::iterator iter=ivec.begin(); iter!=ivec.end();++iter) { 3 if(*iter==8) { 4 ivec.erase(iter); 5 } 6 } 以...
(使用for loop) (中级) 初学者若想要删除std::vector内的element,第一个想到的就是用for loop,若该iterator的值是我要删的,就erase 1 // Compile OK, but run-time error!! 2 for(std::vector<int>::iterator iter = ivec.begin(); iter != ivec.end(); ++iter) { 3 if (*iter == 8) {...
size() << std::endl; std::cout << "After deletion: "; for (int num : vec) { std::cout << num << " "; } std::cout << std::endl; } else { std::cout << "The vector is empty, cannot delete an element." << std::e...
若要删除std::vector中的element,正规的方式该用find() generic algorithm,若find()找到了,会传回该iterator,若找不到,将传回vector.end()。这种写法远比用for loop干净很多。 1/**//* 2(C) OOMusou 2006 3 4Filename : VectorFindAndErase.cpp ...
std::vector<int> vec; vec.push_back(6); vec.push_back(-17); vec.push_back(12); // Deletes the second element (vec[1]) vec.erase(std::next(vec.begin())); 或者,一次删除多个元素: // Deletes the second through third elements (vec[1], vec[2]) vec.erase(std::next(vec.begi...
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<vector>#include <iostream>int main() {std::vector<int> vec = {1, 2, 3, 4, 5};auto it = std::find(vec.begin(), vec.end(), 3);if (it != vec.end()) {std::cout << "Element found: " << *it << std::endl;} else {std::cout << "Element not found" << std::...
What that code effectively does walk the entire vector and copy each element we want to keep toward the start of the list while skipping the ones we asked to be removed. The implication is that assignment operator will be called for each one. If your assignment operator does anything importan...
若要删除std::vector中的element,正规的方式该用find() generic algorithm,若find()找到了,会传回该iterator,若找不到,将传回vector.end()。这种写法远比用for loop干净很多。 1 /* 2 (C) OOMusou 2006http://oomusou.cnblogs.com 3 4 Filename : VectorFindAndErase.cpp ...