Delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length<\/p>\n\n\n\n
\u3010strlen\u3011PChar \u4e32\u5c08\u7528\u51fd\u6578\uff1a\u4e32\u9577\u5ea6<\/p>\n\n\n\n
procedure TForm1.BitBtn1Click(Sender: TObject);
var s: Widestring;
begin
s := ‘\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b’;
ShowMessage(IntToStr(Length(String(s))));\/\/\u7d50\u679c\u4e0d\u662f8\u800c\u662f16
end;
\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501
\u5982\u679c\u60f3\u5f97\u52308\uff1a
ShowMessage(IntToStr(Length(s)));\/\/\u7d50\u679c\u4e0d\u662f16\u800c\u662f8<\/p>\n\n\n\n
\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501
\u3010length\u3011Length (S): Integer; \u8fd4\u56de\u53c3\u6578\u5b57\u4e32\u7684\u9577\u5ea6\u3002<\/p>\n\n\n\n
AnsiString\u9019\u662fPascal\u7f3a\u7701\u7684\u5b57\u4e32\u985e\u578b\uff0c\u5b83\u7531AnsiChar\u5b57\u5143\u7d44\u6210\uff0c\u5176\u9577\u5ea6\u6c92\u6709\u9650\u5236\uff0c\u540c\u6642\u8207null\u7d50\u675f\u7684\u5b57\u4e32\u76f8\u76f8\u5bb9\u3002<\/p>\n\n\n\n
\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0cAnsiString\u985e\u578b\u80fd\u88ab\u7528\u6210PChar\uff0c\u61c9\u8a72\u76e1\u53ef\u80fd\u5730\u4f7f\u7528AnsiString\uff0c\u56e0\u70ba\u5b83\u5c0d\u5b57\u4e32\u8a18\u61b6\u9ad4\u7684\u7ba1\u7406\u662f\u81ea\u52d5\uff0c
\u6975\u5927\u5730\u6e1b\u5c11\u4e86\u61c9\u7528\u7a0b\u5f0f\u4e2d\u8a18\u61b6\u9ad4\u6df7\u4e82\u7684\u932f\u8aa4\u4ee3\u78bc\uff0c\u56e0\u6b64\uff0c\u8981\u76e1\u53ef\u80fd\u5730\u907f\u514d\u7528PChar\u985e\u578b\u4ee5\u53ca\u5c0d\u5b83\u76f8\u61c9\u9032\u884c\u4eba\u5de5\u5206\u914d\u8a18\u61b6\u9ad4\u3002<\/p>\n\n\n\n
\nunit Unit1;\n \ninterface\n \nuses\n Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,\n Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;\n \ntype\n TForm1 = class(TForm)\n Button1: TButton;\n Button2: TButton;\n Button3: TButton;\n Button4: TButton;\n Button5: TButton;\n procedure Button1Click(Sender: TObject);\n procedure Button2Click(Sender: TObject);\n procedure Button3Click(Sender: TObject);\n procedure Button4Click(Sender: TObject);\n procedure Button5Click(Sender: TObject);\n private\n { Private declarations }\n public\n { Public declarations }\n end;\n \nvar\n Form1: TForm1;\n \nimplementation\n \n{$R *.dfm}\n \nprocedure TForm1.Button1Click(Sender: TObject);\nvar s: Widestring;\nbegin\ns := '\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b';\nShowMessage(IntToStr(Length(String(s))));\/\/XE\u986f\u793a8 \/\/D7 \u7d50\u679c\u4e0d\u662f8\u800c\u662f16\nend;\n \nprocedure TForm1.Button2Click(Sender: TObject);\nvar s: Widestring;\nbegin\ns := '\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b';\nShowMessage(IntToStr(Length(s))); \/\/XE\u986f\u793a8 \/\/D7\u7d50\u679c\u4e0d\u662f16\u800c\u662f8\nend;\n \nprocedure TForm1.Button3Click(Sender: TObject);\nvar\n s: AnsiString;\nbegin\n s:='\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b';\n ShowMessage(IntToStr(Length(s))); \/\/XE\u986f\u793a16\nend;\n \nprocedure TForm1.Button4Click(Sender: TObject);\nvar\n s: AnsiString;\nbegin\n s:='\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b';\n ShowMessage(IntToStr(strlen(PWideChar(s)))); \/\/XE\u986f\u793a8\nend;\n \nprocedure TForm1.Button5Click(Sender: TObject);\nvar\n s: AnsiString;\nbegin\n s:='\u81fa\u7063\u81ea\u7531\u5e73\u7b49\u535a\u611b';\n ShowMessage(IntToStr(SizeOf(PWideChar(s)))); \/\/XE\u986f\u793a4(32\u4f4d\u5143\u7a0b\u5f0f)\nend;\n \nend.\n<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
\u6211\u5011\u5718\u968a\u4f7f\u7528Delphi\u5df2\u7d9330\u5e74\u4ee5\u4e0a\u7684\u7d93\u9a57\uff0c\u5982\u679c\u6709\u4ec0\u9ebc\u554f\u984c\uff0c\u6b61\u8fce\u8207\u6211\u5011\u806f\u7e6b\uff0c\u4e5f\u53ef\u4ee5\u5728\u4e0b\u65b9\u7559\u8a00\u8655\u8207\u6211\u5011\u5206\u4eab\uff0c\u611f\u8b1d\u60a8!!<\/p>\n\n\n\n
\u624b\u5200\u8a66\u7528=>\u8766\u76ae\u5c0d\u5e33\u738b<\/a><\/p>\n\n\n\n\u624b\u5200\u8a66\u7528=>\u5eb7\u6377\u96f2\u7aefERP<\/a><\/p>\n\n\n\n\u76f8\u95dc\u6587\u7ae0<\/p>\n\n\n\n
\ud83d\udc49 Delphi-Component-TProgressBar\u9032\u5ea6\u689d\u7bc4\u4f8b<\/a><\/p>\n\n\n\n\ud83d\udc49 \u7db2\u8def\u7248\u5e02\u62db\u660e\u5e74\u5143\u65e6\u4e0a\u8def\uff0c\u8ca1\u90e8\u76e4\u9ede\u56db\u5927\u9069\u7528\u60c5\u5883<\/a>
\u8ce6\u7a05\u7f72\u5b98\u54e1\u8868\u793a\uff0c\u5982\u679c\u500b\u4eba\u7576\u6708\u92b7\u552e\u984d\u672a\u9054\u71df\u696d\u7a05\u8d77\u5fb5\u9ede\uff08\u92b7\u552e\u8ca8\u72698\u842c\u5143\uff1b\u52de\u52d94\u842c\u5143\uff09\u800c\u66ab\u514d\u7533\u8acb\u7a05\u7c4d\u767b\u8a18\uff0c\u5c31\u4e0d\u6703\u6709\u7db2\u8def\u7248\u5e02\u62db\u65b0\u5236\u9069\u4e0d\u9069\u7528\u7684\u554f\u984c\u3002<\/span><\/p>\n\n\n\n\ud83d\udc49 \u9032\u51fa\u8ca8\u4e00\u89bd\u8868 \u7c21\u55ae\u738b \u64cd\u4f5c\u6b65\u9a5f\u8a73\u89e3<\/a><\/p>\n\n\n\n\ud83d\udc49 \u7c21\u55ae\u738b-\u9032\u51fa\u8ca8\u532f\u5165\u4e0a\u50b3\u5de5\u5177 \u64cd\u4f5c\u6b65\u9a5f\u8a73\u89e3<\/a><\/p>\n\n\n\n\ud83d\udc49 \u8766\u76ae\u5c0d\u5e33\u738b-\u8766\u76ae\u5c0d\u5e33\u7d50\u679c\u4e00\u89bd\u8868-\u70ba\u4ec0\u9ebc\u8981\u5c0d\u5e33?\u7121\u5c0d\u61c9???<\/a><\/p>\n\n\n\n\ud83d\udc49 \u8766\u76ae\u5c0d\u5e33\u738b-\u5c0d\u5e33\u539f\u7406\u5206\u6790-\u6709\u8a02\u55ae\uff0c\u6709\u64a5\u6b3e\u3060\u3044\u3058\u3087\u3046\u3076(\u5927\u4e08\u592b)\uff1b\u6709\u8a02\u55ae\uff0c\u6c92\u64a5\u6b3e \u6b50NO~~~~~!!!<\/a><\/p>\n\n\n\n[\u8766\u76ae\u670d\u52d9] \u8a02\u55ae\u5b8c\u6210\u5f8c\u4ec0\u9ebc\u6642\u5019\u80fd\u5920\u6536\u5230\u6b3e\u9805\u5462\uff1f<\/a><\/h2>\n\n\n\n\u4efb\u4f55\u4e00\u5957\u7cfb\u7d71\u7684\u64b0\u5beb\u8207\u7dad\u8b77\uff0c\u90fd\u9700\u8981\u76f8\u5c0d\u61c9\u7684\u4eba\u529b\u8207\u96f2\u7aef\u8cc7\u6599\u5eab\u4f86\u7dad\u6301\u3002
\u611f\u8b1d\u60a8\u9858\u610f\u4f7f\u7528\u6211\u5011\u7684\u7cfb\u7d71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"qubely_global_settings":"","qubely_interactions":"","footnotes":""},"categories":[89,306],"tags":[91],"class_list":["post-4554","post","type-post","status-publish","format-standard","hentry","category-delphi","category-delphi_string","tag-delphi"],"qubely_featured_image_url":null,"qubely_author":{"display_name":"\u5eb7\u6377Qoo","author_link":"https:\/\/www.citerp.com.tw\/citwordpress\/author\/cit001\/"},"qubely_comment":1,"qubely_category":"Delphi<\/a> Delphi_string<\/a>","qubely_excerpt":"delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length","yoast_head":"\ndelphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length - \u514d\u8cbb\u8cc7\u6e90\u5206\u4eab<\/title>\n<meta name=\"description\" content=\"delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.citerp.com.tw\/citwordpress\/delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlenlength\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"delphi\u5169\u500b\u53d6\u5b57\u4e32\u9577\u5ea6\u7684\u51fd\u6578strlen,length - 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