摘要：
代码如下：stringstrs=“ad6la4ss42d6s3”；字典＜char，int＞dic=newDictionary＜char，int˃（）；foreach（variateminstrs）｛if（dic.Keys.Contains（item））｛dic[item]++；｝否则｛dic.Add（item，1）；｝｝Foreach（varsindic）｛Console.WriteLine（“字符：｛0｝，出现次数为｛1｝”，s.Key，s.Value）；｝
代码如下:
string strs = "ad6la4ss42d6s3";
Dictionary<char, int> dic = new Dictionary<char, int>();
foreach(var item in strs)
{
if (dic.Keys.Contains(item))
{
dic[item]++;
}
else
{
dic.Add(item,1);
}
}
foreach (var s in dic)
{
Console.WriteLine("字符：{0}，出现次数为{1}",s.Key,s.Value);
}
