一道面试题
给一个文本文档其中有姓名，手机号码，固定电话，请按照手机号码排序。
我当时给出的算法如下：
var
ay,by : array[0..5] of string;
f : TextFile;
s : string;
list : TStringList;
value : string;
i,j : integer;
a,b : string;
begin
hash := THashedStringList.Create;
mmo1.Clear;
i := 0;
j := 0;
list := TStringList.Create;
s:= 'C:\Users\Administrator\Desktop\123.txt';
AssignFile(f,s);
Reset(f);
while not eof(f) do
begin
readln(f,ay[i]);
i := i+1;
end;
//a := StrPas(StrScan(PChar(ay[0]),','));
//ShowMessage(a);
//b := StrPas(StrRScan(PChar(ay[0]),','));
//b:=MidStr(ay[0],4,11);
//ShowMessage(b);
for i:= 0 to 4 do
begin
j:= Pos(',',ay[i]);
if j<>5 then
by[i] := midstr(ay[i],j-2,11)+'='+ay[i]
else
by[i] := MidStr(ay[i],j-1,11)+'='+ay[i];
end;
for i:= 0 to 4 do
begin
list.Add(By[i]);
end;
list.Sort;
for i:=0 to 4 do
begin
mmo1.Lines.Add(list.ValueFromIndex[i]);
end;
CloseFile(f);
//mmo1.Lines.SaveToFile('C:\Users\Administrator\Desktop\123.txt');
//mmo1.Lines.AddStrings(list);
// end;
end;
