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发表于 2012-11-13 08:48:12
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1判断语句
* e W# T4 A( J0 A( e' F if <condition> then- {3 f+ [: [; n5 p8 _
<statement sequence1>;" A- N+ c- F4 V. w* A+ L( G% g
elseif <condition> then
" H1 n* z# C* ~+ { <statement sequence2>;2 J/ R8 ^! M3 \* ~6 T' s
else
& s- V" s$ C0 Z) @8 t0 d, ?5 z# B <statement sequence3>;
D! |, }- n) h# `6 W end;
, U9 N4 ?/ ~4 d* v4 P如果分支比较多，用：
* u$ K) _ N' i9 z inspect <expression>( o+ }8 M6 t" c5 f/ e( y
when <constant_list> then) A F" U+ c" [* P( _( V0 I+ k) q
<statement sequence1>;! G, D4 M* m P% ^1 z7 N
when <constant_list> then
; {' F% u7 T( [7 W <statement sequence2>;
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else
* @; m7 i# X7 D# c4 k <statement sequence3>;
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2循环语句# h* o. B& Q. x
(1) from <statement sequence1>
. s3 z! R1 ?8 a until <condition> loop! |$ j# e: j! Y' \ R$ x
<statement sequence2>;
: K; n+ G7 T" A* O" P end;
1 ~9 W. Y( b: }# n. z* r (2) while <condition> loop& m# \6 s0 A+ f) z% |0 H
<statement sequence1>;
2 i0 q' B* f) o; v$ h" j3 ^" m end;; m+ e7 ^% l, |
(3) repeat
" \0 F3 F, X, N$ S3 @8 R <statement sequence1>;) \$ g# u9 ]) [+ \) E" R3 V* P, R( K
until <condition>;" w6 z) f8 @" ^. i, |
(4) for <condition> to <condition> loop
# f/ X+ u, B" O% j( X- O <statement sequence1>;
5 y, A1 p% j5 a5 r9 H6 l1 P next;2 W; R! W* V& w, Q4 P7 m
3中断语句3 w6 o) t) J$ S4 p
waituntil <condition> prio <integer expression>;1 [; R: w% H+ s7 I D$ A5 R" w
# \ ]+ b& t8 N$ r r% @* Y6 \" A# f% ]5 p* e4 ]! {7 f
以上为常用的函数！
/ H g+ ^* H0 t, o ?# I& n还有很多，如有需要我把资料发到你邮箱里 u7 L* {0 n8 [9 b9 c4 [; c5 \1 X. B
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