ĵռŰ.word汾ɱ༭.ӭ֧.
ѧ һ 㷨 1.2 㷨̽ ˽B
3
1ѭִԭ
(1)forѭִй̣ͨforѭֵѭiѭֵֵʱ˳ִѭڵĸ䣬endѭһֵֵȽϣԲֵΧٴִѭ壬ظִУֱѭֵֵѭ
ܰʾ ֻеѭȷʱʹñ䣮
ڲΪ0롰ѭΪʱҪֵڳֵֵСڳֵѭִУΪʱҪֵСڳֵ
forӦijͼͼʾ
(2)whileִй̣ӦڳͼеѭṹжǷʱִѭ壬endʱͷصwhileжԳظ̣ȥִend(˳ѭ)
ܰʾ ٵѭδ֪ʱֻwhileѭۼӡ۳⣬ѭѭΨһģȷγɡֹͣѭѭҪע롰ǡĴӦ
whileӦĻͼͼʾ 2.Scilabг÷
ѧ (еij˷) (еij) ab(еָ) (еСڵڷ) (еĴڵڷ) (еIJȺ) |x|(еȡֵ) (еġҡ) (еġ) Scilabг *(ʾ˷) /(ʾ) ^a b(ʾָ) (ʾСڵڵķ) (ʾڵڵķ) (ʾڵķ) abs(x)(ȡֵĺ) and(ʾеġҡ) or(ʾеġ) 1 Scilabдijݳͼ xinput(x)
1word汾ɱ༭.ӭ֧.
ĵռŰ.word汾ɱ༭.ӭ֧.
yinput(y) print(%io(2)x/2) print(%io(2)3*y) xx1 yy1
print(%io(2)x) print(%io(2)y)
ó1,2input䣬ҪӼxyֵ3,4print䣬ҪĻ3yֵ5,6丳ֵ䣬x1ֵ
2ԭxֵy1ֵԭyֵ7,8Ļxyֵɴ˿ɵóͼ ⣺
˼ ͼͣؼĹʲôȻʵʲøֵʱɶһظֵֵȡһεĸֵ. 2x1x>0??
2 ֪y?2x1x0
??2x24xx<0
д
ֶ֪κĽʽֵ⣮зֶκĶֳ֣ӶڳжʹʱҪעд˳ĶӦ ⣺£ xinput(x) if x0
y(2* x^2)1 else if x0
y2*x1 else
y2*x^24] end end
print%io2,y
2word汾ɱ༭.ӭ֧.
2
x
xֵyֵͼ
ĵռŰ.word汾ɱ༭.ӭ֧.
ͼͼʾ
˼ ݱɻдʽ(Ƕʽ)£ 3 forд13572 015ֵij
һ㷨£
S1 S1 S2 i3 S3 SSi S4 ii2
S5 i2 015ִS6ִS3S4S5 S6 S.
⣺£
˼ (1)еSS iѭ壮
(2)һ۳⣬趨SijʼֵΪ1iijʼֵΪ1ڶҲɸΪfor i122 015нһģ
(3)עⱾзֺŵãûзֺţĻϻÿһнзֺţֻн
111
4 ѭд110СȻn㷨дӦ
23n
111
ⲻȺŵΪ1йɵۼ㣬ۼӱS
23nҪS10СȻnʿáwhile S10ѭҪiͨii1ѭ ⣺㷨£
S1 S0 S2 i1 S3 SS
S4 S10ii1S3i.
£
1
i
S0 i1 SS1/i While S10
ii1
3word汾ɱ༭.ӭ֧.
ĵռŰ.word汾ɱ༭.ӭ֧.
SS1/i
end
print(%io(2)i)
˼ ڱֵԤȲ˲ſwhileѭҪע㷨һ£ 5 дʹ123________2 014һ
⣺S1
i1 while S2 014
ii1 SSi
end
print(%io(2)i)
㷨ֻ1õֵʲȷʵϣΪзѡprint(%io(2)i)Ƶѭڣ ⣺ⷨһ
S1 i1
while S2 014
print(%io(2)i) ii1 SSi
end
ⷨ
S1 i1
while S2 014
ii1 SSi
print(%io(2)i1)
end
4word汾ɱ༭.ӭ֧.