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发表于 2012-11-13 08:48:12
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1判断语句* R- a+ t I0 J2 W/ R7 X/ H
if <condition> then
+ J% h# v p p <statement sequence1>;
( k! Q1 k" q, U; g" T' Y9 R! l6 J- i* { elseif <condition> then
- q! j) d& C& n$ {1 s <statement sequence2>;) S) v; X4 G( H4 P7 A
else " _/ q5 x5 Q6 ~1 G! k) R
<statement sequence3>;) J$ {9 N9 T3 U. o* Y% w
end;
9 R1 c1 ?9 V2 \, s# E如果分支比较多，用：
3 B* d# \0 }. F7 \0 h4 R e inspect <expression>* r" ~0 l) r1 c$ s7 c
when <constant_list> then0 ~) D- T8 h' P% M. d
<statement sequence1>;: [0 }1 Y# o$ k4 H, B
when <constant_list> then
! {9 `; j. @! T! J <statement sequence2>;4 B& }. K( H' L: R$ H7 D
...5 }" m) p2 Q: F! R) e$ b
else
5 y8 U+ r7 X2 H9 ] <statement sequence3>;
9 r$ p$ N' T- b' I, Qend;+ g! Y; J9 n! v) ~( e1 y
; v% H" i/ K7 w2循环语句
' l" R& p7 O* v8 f% B0 G (1) from <statement sequence1>7 v# d- R4 k6 N
until <condition> loop2 {" B4 g5 ^1 r# U" |4 z7 j+ A
<statement sequence2>;+ H3 O0 }* ]! r" ^* x
end;8 D( P: @' g& Q8 E& \
(2) while <condition> loop) I6 F" P+ p" X+ P
<statement sequence1>;
8 d" l% ^* w* L: ]( n end;
( W8 n! h7 b& @# ` (3) repeat 7 ^7 H% `/ e* B% l* J; O
<statement sequence1>;
* h! p) s( t9 l until <condition>;4 q6 v2 l* M8 N- r6 [ H! f! n1 S
(4) for <condition> to <condition> loop
3 I/ o0 C' `* J4 z! B9 V <statement sequence1>;9 z$ A+ F7 K) U8 U Q
next;
) n3 k1 Y! z# k, X7 v3中断语句. _, \/ N4 k( Z+ i' u
waituntil <condition> prio <integer expression>;- a, t1 H7 I e5 }
9 [" t; I6 X5 p$ T
: N0 B2 ~0 k. A以上为常用的函数！
) ~( _6 L' n4 k/ A: ^/ x还有很多，如有需要我把资料发到你邮箱里 ) x) C2 Z7 ~1 w
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