#include<iostream> using namespace std; class Object{ void* data; const int size; const char id; public: Object(int sz, char c) :size(sz),id(c){ data = new char[size]; cout << "Constructor Object" << id << ",size=&qu
一.错误: Uncaught InvalidStateError: Failed to read the 'selectionDirection' property from 'HTMLInputElement': The input element's type ('hidden') does not support selection. 解决方法: 对于具有display:none样式的表单 在提交时是以hidden的形式提交了,我有一个表单是select ,但是处于某个display:n