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...
Example 2: C++ Ranged for Loop Using Vector #include<iostream>#include<vector>usingnamespacestd;intmain(){// declare and initialize vectorvector<int> num_vector = {1,2,3,4,5};// print vector elementsfor(intn : num_vector) {cout<< n <<" "; }return0; } Run Code Output 1 2 3 ...
for(inti=0;;){longi=1;// valid C, invalid C++// ...} Keywords for Example Run this code #include <iostream>#include <vector>intmain(){std::cout<<"1) typical loop with a single statement as the body:\n";for(inti=0;i<10;++i)std::cout<<i<<' ';std::cout<<"\n\n""2)...
一般来说，我是这么用的：for循环： 常用在遍历数组，vector，list 等遍历之前已经知道长度的情况。...
#include <iostream> #include <vector> int main() { std::vector<int> numbers = {1, 2, 3, 4, 5}; // Using a range-based for loop to iterate over the elements of the vector for (int number : numbers) { std::cout << number << " "; } return 0; } Output: 1 2 3 4 5 ...
This will advance program execution to the first line of the for loop, and skip over all the internal function calls within thevectorandstringclasses that are invoked when themsgvariable is created and initialized. Notice the change in theVariableswindow on the left. ...
201603L(C++17)Range-basedforloop withdifferentbegin/endtypes 202211L(C++23)Lifetime extension for all temporary objects inrange-initializer Keywords for Example Run this code #include <iostream>#include <vector>intmain(){std::vector<int>v={0,1,2,3,4,5};for(constint&i:v)// access by...
linspace is similar to the colon operator :, but it gives direct control over the number of points and always includes the endpoints. The sibling function logspace generates logarithmically spaced values. When you create a vector to index into a cell array or structure array (such as cellName{...
Avoid assigning a value to theindexvariable within the loop statements. Theforstatement overrides any changes made toindexwithin the loop. To iterate over the values of a single column vector, first transpose it to create a row vector.
linspaceis similar to the colon operator:, but it gives direct control over the number of points and always includes the endpoints. The sibling functionlogspacegenerates logarithmically spaced values. When you create a vector to index into a cell array or structure array (such ascellName{:}orstr...