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Topic sourcefor(var key in arr){ console.log("hello,"+arr[key]) }; for(var key in arr){ arr.reverse() console.log("hello,"+arr[key]) }; var n = 3; while (n > 0) { n=n-1; arr.reverse(); console.log("Hello,"+ arr[n]) } ; var n = -1; while (n<2) { n=n+1; console.log("Hello,"+ arr[n]) }
- 1
rb-h浪子-含笑
var i=0; while(i<arr.length){ console.log(
Hello,${arr[i]}!
); i++; } for(var index in arr){ console.log(Hello,${arr[index]}!
); }