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  • Delphi StrUtils-字符串函数RightStr、MidStr、LeftStr

    Delphi StrUtils-字符串函数RightStrMidStrLeftStr

    引用单元:StrUtils

    函数原型:

    function RightStr
    (Const Str: String; Size: Word): String;
    begin
    if Size > Length(Str) then Size := Length(Str) ;
    RightStr := Copy(Str, Length(Str)-Size+1, Size)
    end;
    --------------------------------------
    function MidStr
    (Const Str: String; From, Size: Word): String;
    begin
    MidStr := Copy(Str, From, Size)
    end;
    --------------------------------------
    function LeftStr
    (Const Str: String; Size: Word): String;
    begin
    LeftStr := Copy(Str, 1, Size)
    

    示例:

    //假设字符串 sStr := 'Delphi is the Good', 那么
    LeftStr(sStr, 5);   // 'Delph'
    MidStr(sStr, 5, 8);  // 'hi is the'
    RightStr(sStr, 6);   // 'e Good'
    

      

      

    创建时间:2020.05.18  更新时间:

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  • 原文地址:https://www.cnblogs.com/guorongtao/p/12909590.html
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