Question

Visual Basic

程序会询问用户物品，物品的价格以及物品的订购商品数量，然后将其保存到相应的变量中。
但是如何通过循环改进呢？

请告诉我如何改进我的代码。

var coordinateString = "38.313072,-89.863845,38.312675,-89.863586,38.310405,-89.862091,38.310405,-89.862091,38.309913,-89.861976,38.309768,-89.861976,38.309768,-89.861976";

var coordinateArray = coordinateString.split(",");
var coordinateResult = "";
var i = 0;
while(i<coordinateArray.length){
  coordinateResult +="[" + coordinateArray[i] + ", " + coordinateArray[i+1] + "]";
  i += 2;
}

Answer 1

我不确定您使用的是哪种语言，但一般结构如下，您可以使用数组而不是变量。

int priceOfItem[5], amountOrdered[5];
String item[5];
for(int i = 0; i<5; i++) {
   Console.WriteLine("Please enter the name of the item.")
   item[i] = Console.ReadLine()
   Console.WriteLine("Please enter the price of the item.")
   Console.Write("£")
   priceOfItem[i] = Console.ReadLine()
   Console.WriteLine("Please enter the amount ordered.")
   amountOrdered[i] = Console.ReadLine()
}

Answer 2

这是缩短代码并使其更优雅所需的VB代码：

Dim priceOfItem(4) As Int32
Dim amountOrdered(4) As Int32
Dim items(4) As String

For i As Int32 = 0 To 4
   Console.WriteLine("Please enter the name of the item.")
   items(i) = Console.ReadLine()
   Console.WriteLine("Please enter the price of the item.")
   Console.Write("£")
   priceOfItem(i) = Console.ReadLine()
   Console.WriteLine("Please enter the amount ordered.")
   amountOrdered(i) = Console.ReadLine()
Next i

如何通过循环改进此代码，使其更短更有效？

2 个答案: