/*5.1 随机从控制台输入一串字符，统计各字符出现的次数。*/
using System;
class countstring
{
static void Main()
{
int n=0;
int p=1;
Console.Write("请输入任意字符串:");
string s =Console.ReadLine();
n =s.Length;//获取索引函数的边界
int l = n;
char [] array2=new char[n];//定义char型数组并初始化
char[] array1 = new char[n];
int [] count = new int[n];//
for (int i = 0; i < n; i++)
{
array2[i] = s[i];//把字符串赋值给字符数组
Console.Write("第{0}个为：{1}\t",i+1,array2[i] );//输出字符数组的每一个值
}
Console.WriteLine();
for (int j =0; j < n; j++)
{
p = 1;
for (int k = j + 1; k < n; k++)
{

if (array2[j] == array2[k])
{
l--;
array1[j] = array2[k];

p++;
count[j] = p;
if (count[j] < count[k])
count[j] = count[k];

}
else
continue;
}

Console.WriteLine("你输入的字符串里{0}出现的次数是：{1}",array2[j],count[j]+1);
}
Console.Read();
}
}
帮我看看我写的这个程序，就是红色部分不太合乎题意，看看能怎么改！！

using System;
class countstring
{
public static bool tt(char p,ref char[] ar)//判断是否重复

for(int i=0;i<ar.Length;i++)
{
if(p==ar[i])
return false;
}

return true;
}

static void Main()
{
int n=0;
int p=1;
Console.Write("请输入任意字符串:");
string s =Console.ReadLine();
n =s.Length;//获取索引函数的边界
int l = n;
char [] array2=new char[n];//定义char型数组并初始化
char[] array1 = new char[n];
int [] count = new int[n];//
for (int i = 0; i < n; i++)
{
array2[i] = s[i];//把字符串赋值给字符数组
Console.Write("第{0}个为：{1}\t",i+1,array2[i] );//输出字符数组的每一个值
}
Console.WriteLine();
int m=-1;
r (int j =0; j < n; j++)
{
if(tt(array2[j],ref array1))
{
m++;

array1[m]=array2[j];
count[m] = 1;
for (int k = j + 1; k < n; k++)
{

if (array2[j] == array2[k])
{

count[m]++;


}

}
Console.WriteLine("你输入的字符串里{0}出现的次数是：{1}",array1[m],count[m]);

}

}
Console.Read();
}

}

using System;
using System.Collections.Generic;
using System.Text;

namespace Console1
{
class Program
{
static void Main()
{
int n = 0;
int p = 1;
Console.Write("请输入任意字符串:");
string s = Console.ReadLine();
n = s.Length;//获取索引函数的边界
int l = n;
char[] array2 = new char[n];//定义char型数组并初始化
char[] array1 = new char[n];
char[] count = new char[n];//
for (int i = 0; i < n; i++)
{
array2[i] = s[i];//把字符串赋值给字符数组
Console.Write("第{0}个为：{1}\t", i + 1, array2[i]);//输出字符数组的每一个值
}
Console.WriteLine();
int con = 0;

for (int j = 0; j < n; j++)
{
p = 1;
int index = 0;
bool qq = false;
for (int z = 0; z < con; z++)
{
if(array2[j] == count[z])
{
qq = true;
break;
}
}

if (qq == false)
{
for (int k = n - 1; k > j; k--)
{
if (array2[j] == array2[k])
{
array1[index] = array2[k];
index++;
p++;
}
}
count[con] = array2[j];
con++;
Console.WriteLine("你输入的字符串里{0}出现的次数是：{1}", array2[j], p);
}
}
Console.Read();

}
}
}