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发表于 2012-11-13 08:48:12
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1判断语句" W& x" O d; v ]2 Y
if <condition> then
; R- S# n% h5 l0 i1 t* J" P <statement sequence1>;
7 { A6 s3 l3 z, C elseif <condition> then6 P Q* ?- K' h! J0 O: j, u
<statement sequence2>;
e% k( m: W# g' {8 \) y0 c else
( r8 V, K( x, K# G <statement sequence3>;
. k1 p$ B( Y/ X& _/ y end;$ c$ [, a9 O% ]1 z# H
如果分支比较多，用：
! T& e; H" I4 u( h \7 b inspect <expression>
# e1 |$ Y7 G/ v/ n' [ when <constant_list> then
Y& R6 [- ~' a4 b Z, Q/ E <statement sequence1>;, v1 {) [, l5 J) A: e
when <constant_list> then% i5 b" c0 i2 b8 U" a# Y1 s% K
<statement sequence2>;+ D1 ]/ I" {2 _% a4 f
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else
. v' a# z, m5 J* R <statement sequence3>;, s5 \ M5 v b' Q8 A
end;; a5 |2 A5 W1 R" K! z
/ S/ E4 m2 E- f! p1 s; V D2循环语句7 S3 W' J- A% J; l& Y j2 |
(1) from <statement sequence1>: e- t: Z! ]% W) N I
until <condition> loop
2 q9 N2 m' Z9 f' a <statement sequence2>;
7 V* S/ K5 j* t& X end;
9 o/ V! V2 [ ]! g" K- R (2) while <condition> loop# W7 `- z0 \1 d1 f) R. W
<statement sequence1>;8 R- X5 P) v8 u% I
end;
; u1 a4 x) C# F% p+ [ (3) repeat 1 |, x1 r5 V- m
<statement sequence1>;
; H, R, t- K1 C8 R until <condition>;
& v9 u3 _: Q" ]/ M8 A (4) for <condition> to <condition> loop
8 p* L# A# [! N0 {; N <statement sequence1>;% e0 i, Q) o8 i5 N% s! G
next;- A! c$ Q+ u. N$ R. F+ V
3中断语句
" j* L! F+ C# E4 M4 f waituntil <condition> prio <integer expression>;4 B: k: I* x& f
2 g/ f" O$ S+ n5 {% I( r
" A& K- K6 o+ s8 _" Z, K2 m8 p以上为常用的函数！) P8 F3 y2 @2 t) y/ m/ P
还有很多，如有需要我把资料发到你邮箱里
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