Delphi StringReplace – 替换字符函数
Delphi中的StringReplace函数是SysUtils单元中自带的函数,该函数可以替换字符串中的指定字符。
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function
StringReplace (
const
S, OldPattern, NewPattern:
string
; Flags: TReplaceFlags):
string
;
// rfReplaceAll：全部替换
// rfIgnoreCase：忽略大小写
// For Example：
var
aStr:
String
;
begin
aStr :=
'This is a book, not a pen!'
;
ShowMessage(StringReplace (aStr,
'a'
,
'two'
, []));
//This is two book, not a pen!只替换了第一个符合的字
ShowMessage(StringReplace (aStr,
'a'
,
'two'
, [rfReplaceAll]));
//This is two book, not two pen!替换了所有符合的字
aStr :=
'This is a book, not A pen!'
;
ShowMessage(StringReplace (aStr,
'a'
,
'two'
, [rfReplaceAll]));
//This is two book, not A pen!只替换了符合的字(小写a)
ShowMessage(StringReplace (aStr,
'a'
,
'two'
, [rfReplaceAll, rfIgnoreCase]));
//This is two book, not two pen!不管大小写替换了所有符合的字
end
;
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