var myArr = [ 2, 3, 4, 5, 6];var total = 0;// Only change code below this linefor(var i = 0; i < myArr.length ; i++) { total += myArr[i];} //20var myArr = [ 2, 3, 4, 5, 6];// Only change code below this linefor(var i = 0; i < myArr.length ; i++) { var total = 0; total += myArr[i];} //6
for語(yǔ)句中的變量作用域問(wèn)題,下列例子不太理解
犯罪嫌疑人X
2018-12-20 23:18:04