procedure TForm3.BitBtn2Click(Sender: TObject);
var
ClassName, StudentNumber : String
//ClassNameLength : Integer
begin
//判断“班级名称”是否符合要求?
ClassName := Trim(Edit1.Text);
//ClassNameLength := Length(ClassName);
if ClassName = '' then
MessageDlg('“班级名称”不能为空!', MTWarning, [MBOk], 0)
else
begin
if Length(ClassName) > 60 then
MessageDlg('“班级名称”太长!', MTWarning, [MBOk], 0);
end;
//判断“学生人数”是否符合要求?
StudentNumber := Trim(Edit3.Text)
try
StrToInt(StudentNumber)
except
MessageDlg('有把握学好用消息框吗?',mtConfirmation,[mbYes,mbNo],0);
end;
end;
[Error] Class2.pas(56): ';' expected but 'BEGIN' found
[Error] Class2.pas(69): 'END' expected but 'TRY' found
[Error] Class2.pas(73): '.' expected but ';' found
[Warning] Class2.pas(74): Text after final 'END.' - ignored by compiler
[Fatal Error] SJZDPGFXXT.dpr(8): Could not compile used unit 'Class2.pas'
var
ClassName, StudentNumber : String
//ClassNameLength : Integer
begin
//判断“班级名称”是否符合要求?
ClassName := Trim(Edit1.Text);
//ClassNameLength := Length(ClassName);
if ClassName = '' then
MessageDlg('“班级名称”不能为空!', MTWarning, [MBOk], 0)
else
begin
if Length(ClassName) > 60 then
MessageDlg('“班级名称”太长!', MTWarning, [MBOk], 0);
end;
//判断“学生人数”是否符合要求?
StudentNumber := Trim(Edit3.Text)
try
StrToInt(StudentNumber)
except
MessageDlg('有把握学好用消息框吗?',mtConfirmation,[mbYes,mbNo],0);
end;
end;
[Error] Class2.pas(56): ';' expected but 'BEGIN' found
[Error] Class2.pas(69): 'END' expected but 'TRY' found
[Error] Class2.pas(73): '.' expected but ';' found
[Warning] Class2.pas(74): Text after final 'END.' - ignored by compiler
[Fatal Error] SJZDPGFXXT.dpr(8): Could not compile used unit 'Class2.pas'
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var
ClassName, StudentNumber : String;
//ClassNameLength : Integer
begin
//判断“班级名称”是否符合要求?
ClassName := Trim(Edit1.Text);
//ClassNameLength := Length(ClassName);
if ClassName = '' then
MessageDlg('“班级名称”不能为空!', MTWarning, [MBOk], 0)
else
begin
if Length(ClassName) > 60 then
MessageDlg('“班级名称”太长!', MTWarning, [MBOk], 0);
end;
//判断“学生人数”是否符合要求?
StudentNumber := Trim(Edit3.Text);
try
StrToInt(StudentNumber)
except
MessageDlg('有把握学好用消息框吗?',mtConfirmation,[mbYes,mbNo],0);
end;
end;
StudentNumber := Trim(Edit3.Text)后面要加分号