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发表于 2012-11-13 08:48:12
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1判断语句% E6 p; S. M( i% D. t
if <condition> then
1 M' Q- [0 \$ d- Z3 g <statement sequence1>;
6 g$ I' t1 X. l8 f3 m C elseif <condition> then
R3 B' y6 ^- V <statement sequence2>;
5 r2 X. u! j4 I5 k6 c3 @7 Y0 r else
5 L i2 }% F- [! w; ` W <statement sequence3>;0 e# D/ g }! |6 P/ \
end; f) o2 j- s0 e1 W+ K
如果分支比较多，用：! _# v5 c, \" ~! n ~6 a
inspect <expression>8 Z o, z, X4 z- ?1 Z
when <constant_list> then
2 S; @& J0 W Z; @. @ <statement sequence1>;; m0 `- J$ P8 d- O1 s J+ l7 J
when <constant_list> then
1 ]+ n; x0 v0 ~ t1 V! G& K <statement sequence2>;. x' v, t8 G2 w! `$ z, {3 {) ]
...2 \ y1 n: {9 f; ?2 f
else5 t& @ s# T6 `! r1 m( P
<statement sequence3>;
4 T; q( l" D5 {. C! N$ }8 K( mend;
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2循环语句, I7 |9 i$ L( j+ D5 ]
(1) from <statement sequence1>
; V- A2 \. f2 Y' o( `4 w& R t, I until <condition> loop
: c' g! q0 J* [) }. Q {0 i& ]2 X <statement sequence2>;, V& {3 O/ A+ t& _- Z8 b' [
end;+ l' s h% E5 L( F- S5 x$ N
(2) while <condition> loop
. B8 |, Q* h/ I& a8 \8 n <statement sequence1>;
/ q/ E+ H3 n! D end;, T7 s n/ N9 r1 {: k9 E
(3) repeat
' X4 ]6 {+ g0 h% N% F9 b <statement sequence1>;: @$ G$ s' t7 |! A6 |
until <condition>;+ F2 ]3 D. ^) p# `5 d% G
(4) for <condition> to <condition> loop
) m8 p% A5 U% q <statement sequence1>;% { O' \5 y+ c3 u( r( k9 x
next;# I' c8 t! X" E. K$ X0 t
3中断语句
! F& @/ a v5 V* E waituntil <condition> prio <integer expression>;4 Q! H3 J$ N3 @! Y* k# e" m
. \$ J$ B6 g3 d
7 g3 X Y" D$ j0 y0 u! O/ ~/ D! H ~以上为常用的函数！
4 h, W! I' l9 t& I4 L& c& C; n, d还有很多，如有需要我把资料发到你邮箱里 - D6 f+ i. U" J# r W
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