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{
public static void Main()
{
Console.WriteLine(Foo(30));
}
public static int Foo(int i)
{
if (i <= 0)
return 0;
else if(i > 0 && i <= 2)
return 1;
else return Foo(i -1) + Foo(i - 2);
}
}
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{
if (control is System.Windows.Forms.TextBox)
{
System.Windows.Forms.TextBox tb = (System.Windows.Forms.TextBox)control ;
tb.Text = String.Empty ;
}
}
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public void BubbleSort(int[] R)
{
int i, j, temp;//½»»»±êÖ¾
bool exchange;
for (i = 0; i < R.Length; i++)//×î¶à×öR.Length-1ÌËÅÅÐò
{
exchange = false;//±¾ÌËÅÅÐò¿ªÊ¼Ç°£¬½»»»±ê־ӦΪ¼Ù
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{
if (R[j + 1] < R[j])//½»»»Ìõ¼þ(ºóÒ»¸öÊýÈç¹ûСÓÚǰһ¸öÊý£©
{
temp = R[j + 1];
R[j + 1] = R[j];
R[j] = temp;
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