function HaveNum(s: string): integer;
var
i: integer;
lResult: string;
begin
i := -1;
lResult := '';
for i := 1 to Length(s) do
if s[i] in ['0'..'9'] then
lResult := lResult + s[i];
Result := StrToInt(lResult);
end;
那如果我用定位的话,应该怎么来写呢?
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那样就把senfore(来而不往非礼也!) 的答案改写一下就可以了
function haveNum(s:string):integer;
var
i:integer;
begin
result:=false;
for i:=1 to length(s) do
if s[i] in ['0'..'9'] then begin
result:=i; //返回数字所在的位置
exit;
end;
else
result:=-1; //如果没有找到返回-1
end;
function haveNum(s:string):boolean;
var
i:integer;
begin
result:=false;
for i:=1 to length(s) do
if s[i] in ['0'..'9'] then begin
result:=true;
exit;
end;
end;