实例介绍
【实例简介】
【实例截图】
【核心代码】
unit Main; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls,math; type TForm1 = class(TForm) Label1: TLabel; GanTEdit: TEdit; Label2: TLabel; Label3: TLabel; ShiTEdit: TEdit; Label4: TLabel; Button1: TButton; ganBHEdit: TEdit; Button2: TButton; shiBHEdit: TEdit; Button3: TButton; ChaEdit: TEdit; Button4: TButton; ShuiEdit: TEdit; Label5: TLabel; XishuEdit: TEdit; Label6: TLabel; QiyaEdit: TEdit; Label7: TLabel; mmph: TLabel; Button5: TButton; shiduEdit: TEdit; procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); procedure Button4Click(Sender: TObject); procedure Button5Click(Sender: TObject); private { Private declarations } function antoineFunc(T:double):double; function antoineFunc1(T:double):double; public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} function TForm1.antoineFunc(T: double): double; //Ph=e^(A-B/(C T)) const A=18.3063; B=3816.44; C=-46.13;e=2.7182818284; var lpot:double; begin lpot:=(A-B/(C T 273.16)); result:=power(e,lpot); end; function TForm1.antoineFunc1(T: double): double; const T1=273.16; var ldou:double; {纯水平液面饱和水汽压的计算公式 logEW=10.79574(1-T1/T)-5.02800log(T/T1) 1.50475×10-4[1- 10-8.2969(T/ T1-1)] 0.42873×10-3(104.76955(1-T1/T)- 1)] 0.78614 式中,EW:纯水平液面饱和水汽压(hPa);T1=273.16K(水 的三相点温度);T=273.15 t℃(绝对温度K)。} begin ldou:=10.79574*(1-T1/(T 273.15)); ldou:=ldou-5.02800*log10((T 273.15)/T1); ldou:=ldou 1.50475*power(10,-4)*(1-power(10,-8.2969*((T 273.15)/ T1-1))); ldou:=ldou 0.42873*power(10,-3)*(power(10,4.76955*(1-(T 273.15)/T1))-1)-0.21368; result:=power(10,ldou); end; procedure TForm1.Button1Click(Sender: TObject); var ldouble:double; begin if not trystrtofloat(ganTedit.Text,ldouble) then begin showmessage('请您输入将输入的干球温度改为浮点数'); exit; end; ldouble:=antoineFunc1(ldouble); ganbhEdit.text:=floattostr(ldouble); end; procedure TForm1.Button2Click(Sender: TObject); var ldouble:double; begin if not trystrtofloat(shiTedit.Text,ldouble) then begin showmessage('请您输入将输入的湿球温度改为浮点数'); exit; end; ldouble:=antoineFunc1(ldouble); shibhEdit.text:=floattostr(ldouble); end; procedure TForm1.Button3Click(Sender: TObject); var ldouble1,ldouble2:double; begin if not( trystrtofloat(shiTedit.Text,ldouble2)and trystrtofloat(ganTedit.Text,ldouble1)) then begin showmessage('请您输入将输入的干湿球温度改为浮点数'); exit; end; ldouble1:=(ldouble1-ldouble2); chaEdit.text:=floattostr(ldouble1); end; procedure TForm1.Button4Click(Sender: TObject); var ldouble1,ldouble2,ldouble3,ldouble4:double; ldouble:double; begin //E=Etw-Ai*Ph*(t-tw) if not trystrtofloat(ganTedit.Text,ldouble1) then begin showmessage('请您输入将输入的干球温度改为浮点数'); exit; end; if not trystrtofloat(shiTedit.Text,ldouble2) then begin showmessage('请您输入将输入的湿球温度改为浮点数'); exit; end; if not trystrtofloat(xishuedit.Text,ldouble3) then begin showmessage('请您输入将输入的干球温度改为浮点数'); exit; end; if not trystrtofloat(qiyaedit.Text,ldouble4) then begin showmessage('请您输入将输入的干球温度改为浮点数'); exit; end; ldouble:=antoineFunc1(ldouble2); ldouble:=ldouble-ldouble3*0.001*ldouble4*(ldouble1-ldouble2); shuiedit.text:=floattostr(ldouble); end; procedure TForm1.Button5Click(Sender: TObject); var ldouble1,ldouble2,ldouble3,ldouble4:double; ldouble:double; begin //E=Etw-Ai*Ph*(t-tw) if not trystrtofloat(ganTedit.Text,ldouble1) then begin showmessage('请您输入将输入的干球温度改为浮点数'); exit; end; if not trystrtofloat(shiTedit.Text,ldouble2) then begin showmessage('请您输入将输入的湿球温度改为浮点数'); exit; end; if not trystrtofloat(xishuedit.Text,ldouble3) then begin showmessage('请您输入将输入的干温系数改为浮点数'); exit; end; if not trystrtofloat(qiyaedit.Text,ldouble4) then begin showmessage('请您输入将输入的大气压改为浮点数'); exit; end; ldouble:=antoineFunc1(ldouble2); ldouble:=ldouble-ldouble3*0.001*ldouble4*(ldouble1-ldouble2); ldouble1:=antoineFunc1(ldouble1); ldouble:=ldouble/ldouble1*100; //shuiedit.text:=floattostr(ldouble); shiduEdit.Text:=floattostr(ldouble); end; end.
好例子网口号:伸出你的我的手 — 分享!
小贴士
感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论