Lec0.md

introduction

Goal: standard C++

1.learn what features are out there in c++ and why they exist

2.Become comfortable with reading c++

3.Become familiar eith the design philosophy of modern C++

History of C++

#include<iostream>

int main(){
    
}

向后兼容：兼容c和asm

Assembly

hard to understand

Complier

C : cs107

Evolution of C++

1.classes

c++98 c++11 c++17 c++20

Design Plilosophy of C++

ALLow the programmer full control

Easy to understand

vector<int> vec = {1,2,3};
int sum = 0;
for (auto val:vec){
    sum +=val;
}

Don't waste time or space