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发表于 2012-11-13 08:48:12
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1判断语句7 u: c" }7 t& a/ g0 W2 t3 }
if <condition> then
4 }: ^" _5 _3 J1 H <statement sequence1>;, b% z9 F# R' Q _
elseif <condition> then f9 B# |+ L6 u: Z: H
<statement sequence2>;8 U7 h Q* g' p% G1 Q+ }
else ! v0 ~6 `3 ^: b
<statement sequence3>;6 u. u+ g+ s; ]# T) @; g
end;" |) k" y8 h' r7 V' Y
如果分支比较多，用：1 ^+ E. H0 A! Z) l9 F T
inspect <expression> y- E: h' h% `8 J3 w. Y
when <constant_list> then
@% g( P q# }' N7 K6 l <statement sequence1>;
, `0 a' }7 @- r+ y0 d when <constant_list> then
. r# x$ X: U! Y$ ~- w( \0 ?2 I <statement sequence2>;& @3 A7 D; k- z8 Y
...
7 T8 ?1 |! x* G$ C else
7 q K8 D y9 V) p( y; c- L- F <statement sequence3>;# M2 ~. `8 |. F1 j8 M. E
end;
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2循环语句) s* l7 ?6 Q- A9 Q. ~9 n) \
(1) from <statement sequence1>( B" C' g. q' b2 b6 E
until <condition> loop
3 e6 |4 o1 {, r <statement sequence2>;% V! L& p2 I1 m: Z8 O! s0 N( e
end;# c I9 ^, g# z; D& e
(2) while <condition> loop
: k6 ?7 ~" |1 S4 a ?/ X <statement sequence1>;
$ o" F. X6 O% f end;. m; X! s. V& Y4 J$ w, ~* W& m% n
(3) repeat
. b! ^6 |/ A, ]0 z) ^ <statement sequence1>;
: m7 W( Y. O$ j! n4 U% T/ U until <condition>;
- B& w* {8 |& C P1 V V" u (4) for <condition> to <condition> loop
* g. V5 v/ i& Z* l" T <statement sequence1>;
9 t P) i4 T2 a8 _* V next;
" T2 X) {3 w3 B t3中断语句
; ~: V# Z% G. Y0 S+ P waituntil <condition> prio <integer expression>;1 D$ k; `9 Z2 p2 a5 o* ~
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% P- C1 F- j6 R# s以上为常用的函数！
# e! n, ]. G) J还有很多，如有需要我把资料发到你邮箱里
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