var arr = ['Bart', 'Lisa', 'Adam', 'Huang']; var i = 0; // for循环: for (i; i < arr.length; i++) { var arrSort = arr.sort(); //正序 arrSort.reverse(); //倒序 console.log(`Hello, ${arr[i]}!`); } // for...in循环 for (var key in arr) { var arrSort = arr.sort(); //正序 arrSort.reverse(); //倒序 console.log(`Hello, ${arr[key]}!`); } // while循环: while (i < arr.length) { var arrSort = arr.sort(); //正序 arrSort.reverse(); //倒序 console.log(`Hello, ${arr[i]}!`); i++; } // do...while循环 do{ var arrSort = arr.sort(); //正序 arrSort.reverse(); //倒序 console.log(`Hello, ${arr[i]}!`); i++; } while (i < arr.length);
Sign in to make a reply
LeoUID