SOURCE

function wode(age) {
         var age  = age;
         if (age < 18){
          console.log('未成年！')
         }else if (age <24){
          console.log('小姐姐你好！我们耍朋友吧！')
         }else if(age >=60){
             console.log('老奶奶您好！')
         }
         else{
          console.log('你是个好人！')
         }
     }
wode(22)
console.log('-----------------------------分界线-----------------------------------')
function switch_R(a) {
    var a = a
    switch (a){
    case 0:
    console.log('周日');
    case 1:
    console.log('周一');
    case 2:
    console.log('周二');
    case 3:
    console.log('周三');
    case 4:
    console.log('周四');
    case 5:
    console.log('周五');
    case 6:
    console.log('周六');    

}}

switch_R(4)
 

<script>

function wode(age) {
         var age  = age;
         if (age < 18){
          console.log('未成年！')
         }else if (age <24){
          console.log('小姐姐你好！我们耍朋友吧！')
         }else if(age >=60){
             console.log('老奶奶您好！')
         }
         else{
          console.log('你是个好人！')
         }
     }
wode(22)
console.log('-----------------------------分界线-----------------------------------')
function switch_R(a) {
    var a = a
    switch (a){
    case 0:
    console.log('周日');
    case 1:
    console.log('周一');
    case 2:
    console.log('周二');
    case 3:
    console.log('周三');
    case 4:
    console.log('周四');
    case 5:
    console.log('周五');
    case 6:
    console.log('周六');    

}}

switch_R(4)
 








</script>