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ES6模板字符串真好用

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离家的圄

#1 Created at ... [Delete] [Delete and Lock User]
正序:
for(var i in arr){
 alert(`Hello,${arr[i]}!`);
} 

for(var i=0;i<arr.length;i++){
 alert(`Hello,${arr[i]}!`)
}

var i = 0;
var x = arr.length;
while(i<x){
  alert(`Hello,${arr[i]}`);
  i++;
}
倒序:
arr.reverse();
for(var i in arr){
  alert(`Hello,${arr[i]}!`);
}

for(var i = arr.length-1;i>=0;i--){
  alert(`Hello,${arr[i]}!`);
}

var i = arr.length-1;
var x = 0;
while(i>=x){
 alert(`Hello,${arr[i]}`);
 i--;
}

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