function ytlxy2(x1:extended):extended;
begin
case x1 of
0.00004<=x1<0.0004: result:=0.0001;
0.0004<=x1<0.004: result:=0.001;
0.004<=x1<0.04: result:=0.01;
0.04<=x1<0.4: result:=0.1;
0.4<=x1: result:=1;
end;
end;
报错,改为0.00004..0.0004:则区分不开<=和<。问?
begin
case x1 of
0.00004<=x1<0.0004: result:=0.0001;
0.0004<=x1<0.004: result:=0.001;
0.004<=x1<0.04: result:=0.01;
0.04<=x1<0.4: result:=0.1;
0.4<=x1: result:=1;
end;
end;
报错,改为0.00004..0.0004:则区分不开<=和<。问?
解决方案 »
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