摘要：break 可以终止循环和switch 但是只能跳出离break最近的一层循环 continue 结束本次循环并进行下一次循环 阅读全文

摘要：for循环 1 let arr=["A","B","C","D","E","F"]; 2 for(let i=0;i<arr.length;i++){ 3 console.log(arr[i]); 4 } for...of 遍历出数组中的每个值 1 let arr=["A","B","C","D", 阅读全文