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发表于 2012-11-13 08:48:12
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1判断语句3 D" r# S/ ~$ z; \
if <condition> then
( n) a$ `$ ~9 o <statement sequence1>;, |: I Y) v: n* {! r h
elseif <condition> then
" M& A) N( ^8 D0 s0 p5 B <statement sequence2>;
! o2 R* u. [0 Q1 ~5 t/ A' G* u else " Z4 A/ D( `& k2 j+ w- J; Y
<statement sequence3>;
5 }' G3 x$ A: i9 ^+ |' p v end;
( H4 ~1 \7 D2 ]+ _如果分支比较多，用：
! m; G( a+ c! S4 u6 c4 ]& [. K8 Y inspect <expression>" d2 z* z6 ?. A! \: P$ j+ B
when <constant_list> then# j7 f* E6 }& h7 n! i6 o+ X
<statement sequence1>;
) l5 y& Y+ X$ ]; G+ r% J8 h when <constant_list> then
/ a) F3 H* s2 t2 h1 O <statement sequence2>;
# p( p! m% o: w& k- `' s, r) { ...0 y: N" g8 `6 w1 F+ v; L1 q
else2 S7 j. ?! J* |/ u8 N6 q# m$ Z
<statement sequence3>;# w) o0 g$ G6 N( e
end;
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( y* b3 F* w) Q2循环语句
3 [( V) q* _; {- I (1) from <statement sequence1>
' S. A% X6 v7 T- ?4 E0 F' Z until <condition> loop
6 m% J+ F6 r' n0 p <statement sequence2>;
9 h |. o) ?: l6 t0 @) |4 B end;$ @5 o/ e: S6 h& m% u! d) n
(2) while <condition> loop
& I3 P$ s& n. w9 `6 {4 I v3 C' ^0 [ <statement sequence1>;
3 C+ \3 u0 [& q2 ~( D' [. M' c end;4 A* U, J2 |, d5 E7 ]8 z
(3) repeat 3 v- g2 ^: r; V' S) M" M# d
<statement sequence1>;
& ?4 U7 B# b, e J C4 g until <condition>;. g4 O' p1 }2 Z V; z9 {. B
(4) for <condition> to <condition> loop# {1 R& _+ e! r
<statement sequence1>;+ Z* v# ]! J z; H8 {
next;
$ R! E+ h9 O% P7 T4 }$ [3中断语句1 u, \ d6 [; a3 T/ b# u4 S
waituntil <condition> prio <integer expression>;8 P) C4 g4 X, a7 q2 \8 F1 p3 R
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以上为常用的函数！. r% {9 c& x! K' H$ D7 i
还有很多，如有需要我把资料发到你邮箱里
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