from flask import flask
import os
app = flask(__name__)
@app.route('/')
def hello():
SECRET_KEY = os.environ.get('SECRET_KEY')
return SECRET_KEY
为什么在class sortedList
{
class Node
{
public:
int value;
Node* next;
Node()
{
this->value = 0;
this->next = NULL;
}
Node(int value)
{
this->value = value;
this->next = NULL;
}
}* head = NULL,* tail = NULL;
public:
void addNode(int value)
{
Node* n = Node(value);
//More code...
}
};
之前添加new会使代码正确？
我认为上面的代码应该保持错误，因为指针不等于节点。