C#学习笔记之——一些应用

//写一系列的重载函数，使其对任意数组（int、char、string）均可排序。同时，在数组之后可增加int参数，使数组可指定排序范围。例如：{1，3，5，2，4}，可对3、5、2排序，1和4不变。
public class MathTool
{
public MathTool ()
{
}
public void Sort (int start, int end, params int[] a) {
int temp = a[start];
for (int i = start; i < end; i++) {
for (int j = start; j < end; j++) {
if (temp > a [i + 1]) {
temp = a [i + 1];
a [i] = a [i + 1];
a [i + 1] = a [i];
}
}
}
}

public void Sort(int start, int end, params char[] a) {
char temp = a [start];
for (int i = start; i < end; i++) {
for (int j = start; j < end; j++) {
if (temp > a [i + 1]) {
temp = a [i + 1];
a [i] = a [i + 1];
a [i + 1] = a [i];
}
}
}
}

public void Sort(int start, int end, params string[] a) {
for (int i = start; i < end - 1; i++) {
for (int j = start; j < end - 1 - start; j++) {
if (a[j].CompareTo (a[j + 1]) == 1) {
string temp = a [i + 1];
a [i] = a [i + 1];
a [i + 1] = temp;
}
}
}
}
}