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发表于 2012-11-13 08:48:12
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1判断语句
% h' e$ H' y1 l+ Z: Y" t$ K" ? if <condition> then* X' U6 C$ Y" Z! e3 t
<statement sequence1>;
# H+ t, Q. T7 E- ~% F elseif <condition> then* |, E9 e# Z) ^
<statement sequence2>;
2 B% u5 P9 X1 Z2 r* ? else . a% C* q8 c+ S5 j' \
<statement sequence3>; }" g5 d3 m" U2 V
end;* e k2 M; i, K; x8 A9 @5 \
如果分支比较多，用：
) N! J0 J3 M" m inspect <expression>$ v$ G5 H* v1 m6 R) z& X
when <constant_list> then/ W& v2 _' f$ S" d4 W
<statement sequence1>;
4 \9 h9 M% k8 T* G when <constant_list> then+ s- k. }9 G; r) s
<statement sequence2>;. R+ A+ e4 r% N+ G; g8 }+ }- S
... g( ~; T. F; a
else
* s9 K- _- i% n4 J" t3 \5 D- T <statement sequence3>;7 P8 e- k+ s P# f$ N, w. {% z
end;
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0 l4 h2 r# D, {/ z2循环语句* V; A7 C) k- {! h+ N p5 M( @$ n
(1) from <statement sequence1>3 ?0 m3 @; v! q( w% n
until <condition> loop o, Z2 S9 m& l
<statement sequence2>;0 o2 g* v, r& ]/ `3 i) m& n6 Y: r' `
end;
4 |9 O$ T; Q) h, Q% D7 H8 d (2) while <condition> loop
e# Y, N& x/ Y <statement sequence1>;
4 j6 n0 L* m0 m6 q/ d end;' g$ {( R. w2 t8 A- ~
(3) repeat $ K: |% }( `4 K
<statement sequence1>;
: x; s4 X+ f6 r4 _9 ?; h9 \. T until <condition>;" p8 ?' Z% t' J2 T5 w: ?( { k
(4) for <condition> to <condition> loop
) Q t$ u; }, w <statement sequence1>;
7 M7 K+ L8 m( ~& U h next;
( |3 f/ o4 Q" S3中断语句
) z! J' b5 j$ F4 f" A. y5 C waituntil <condition> prio <integer expression>;& l7 ^9 t, z8 M. Q& I
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以上为常用的函数！
0 K' m% k6 F; |" B6 c! V3 |' i还有很多，如有需要我把资料发到你邮箱里
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