week1-wednesday

<<<<<<< HEAD＃周三9/16的概述 回顾昨天，去做功课 介绍数组 在课堂练习中（成对） ＃＃在家工作 //1. Log your name to the console (as a string). //2. Declare a variable called name, log it to the console. //3. Declare two variables with number values. Add, subtract, multiply and divide them. //4. Declare two variables with string values. Create a third variable that concatenates them. //5. Add, subtract, multiply and divide the strings