[英]String array splitting in C#
我有兩個字符串/文本文件:“ 1.dll”和“ 1a.dll”-1.dll包含“訂單ID”和“ cartID”(用輸入'/ n'分隔)-1a.dll是數據庫witdh“ id ”和“名稱”(以'/ n'分隔)
我將字符串拆分為字符串數組。 然后,我將每個數組字符串分成兩個字符串。 一個帶有偶數位置,另一個帶有奇數位置。 拆分兩個文件后,我將顯示4個數組字符串,並將其顯示到4個ListBoxes。 -來自1.dll的2個數組按應有的方式顯示-來自1a.dll的2個數組缺少某些值。 這是有問題的屏幕截圖
//Load and split "1.dll" > create 2 array strings. orderID=odd # position and cartID=even # position
string a = File.ReadAllText(@"order/1.dll");
string[] aa = a.Split('\n');
aa = aa.Select(s => (s ?? "").Trim()).ToArray();
string[] orderID = new string[aa.Length];
string[] cartID = new string[aa.Length];
int Dial1 = 0;
int Dial2 = 0;
for (int i = 0; i < aa.Length; i++)
{
if (i % 2 == 0)
{
orderID[Dial1] = aa[i];
Dial1++;
}
else
{
cartID[Dial2] = aa[i];
Dial2++;
}
}
for (int j = 0; j < aa.Length / 2; j++)
{
AddToCartList.Items.Add(cartID[j]);
OrderIDList.Items.Add(orderID[j]);
}
//Load and split "1a.dll" > create 2 array strings. id=odd # position and game=even # position
string b = File.ReadAllText(@"order/1a.dll");
string[] bb = b.Split('\n');
bb = bb.Select(s => (s ?? "").Trim()).ToArray();
string[] id = new string[bb.Length / 2];
id = id.Select(s => (s ?? "").Trim()).ToArray();
string[] name = new string[bb.Length / 2];
name = name.Select(s => (s ?? "").Trim()).ToArray();
string combindedString = string.Join("\n", bb.ToArray());
MessageBox.Show(combindedString);
int Dial3 = 0;
int Dial4 = 0;
for (int i = 0; i < bb.Length / 2; i++)
{
if (i % 2 == 0)
{
id[Dial3] = bb[i];
Dial3++;
}
else
{
name[Dial4] = bb[i];
Dial4++;
}
}
for (int j = 0; j < bb.Length / 2; j++)
{
IDlist.Items.Add(id[j]);
nameList.Items.Add(name[j]);
}
for (int i = 0; i < id.Length; i++)
{
if (orderID[0] == id[i])
{
textBox1.Text = name[0];
}
if (orderID[2] == id[i])
{
textBox2.Text = name[1];
}
if (orderID[2] == id[i])
{
textBox3.Text = name[1];
}
}
在第二個循環中,運行循環以獲取bb數組內容的一半
for (int i = 0; i < bb.Length / 2; i++)
這應該是
for (int i = 0; i < bb.Length; i++)
但是除此之外,可以使用通用的List<T>
而不是創建太多的臨時數組來對該代碼進行很多更改,
例如,第一個循環可以寫成
// ReadAllLines already returns your text file splitted at newlines
string[] aa = File.ReadAllLines(@"order/1.dll");
// With lists you don't need to create a fixed size array in advance...
List<string> orders = new List<string>();
List<string> carts = new List<string>();
// Your array could be iterated two items at times
// Of course here a check for even number of items should be
// added here....
for (int i = 0; i < aa.Length; i += 2)
{
orders.Add(aa[i]);
carts.Add(aa[i+1]);
}
// The collections have the possibility to add a range of items
// without you writing a loop
AddToCartList.Items.AddRange(carts.ToArray());
OrderIDList.Items.AddRange(orders.ToArray());
錯誤在這里:
int Dial3 = 0;
int Dial4 = 0;
for (int i = 0; i < bb.Length / 2; i++)
長度應該是bb.Length不帶/ 2;
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.