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发表于 2012-11-13 08:48:12
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1判断语句, V4 Z9 f% G) A$ i" e' P
if <condition> then" |$ [9 X& m0 w
<statement sequence1>;/ q: O3 i; ]9 }
elseif <condition> then/ M$ {$ k7 N1 j; O) H6 y8 f$ _
<statement sequence2>;
- Q* }6 _4 Q9 q" Y3 u1 S2 x else
+ z1 h7 y1 x% `- P1 j <statement sequence3>;/ z! L; |5 s. x3 Y' v' n+ C
end;5 X, G5 E) ^# s0 @8 x8 u1 X- q. S5 ^
如果分支比较多，用：- I# X8 z/ M+ _: u5 `3 Y0 s
inspect <expression>* A! x7 @0 Q0 T/ b8 J- e: e; W0 z
when <constant_list> then
) _/ ^9 F; \4 a <statement sequence1>;
6 y8 ?" x- E; I4 C# }* @+ W when <constant_list> then
+ ~% J9 q. V4 J <statement sequence2>;
8 M# n/ t* c8 [% e r# @8 q ...
0 {7 E; T- }% w, K4 X% z else
( y" J, |+ R* Z4 r7 k/ R <statement sequence3>;
w" m: B, W `$ a3 [$ ^: |end;/ i- b2 N/ q4 G9 a. T# S# N
: p6 |2 ~) `, I" y. B2 I; q' m0 G2循环语句
- w3 `& O# g. m) d5 W* @2 C (1) from <statement sequence1>
' }# [1 q! a( D' Y) O3 b until <condition> loop2 o* ~9 N8 S4 \1 J4 F2 @
<statement sequence2>;
& b- E, L7 ?* y end;
- _+ R- C0 y0 J U: \& A% t (2) while <condition> loop$ D& y+ Y' B) G) Y
<statement sequence1>;1 X1 d8 Y, g3 o
end;/ b5 K( t; ]' ]3 x5 m2 K
(3) repeat
/ ^; k) v, z# U" P! Z$ v% I <statement sequence1>;& v/ n; [6 P1 J# ]/ P7 \
until <condition>;- W0 z" k( s7 r
(4) for <condition> to <condition> loop
- R: e2 I) c# P( H9 G. {( F <statement sequence1>;
/ A) ? Y8 z {0 f next;( k1 [# h. \( F# j# X& r) I) M% z
3中断语句
# i$ T0 q. C+ j* `* O6 ]' ^ waituntil <condition> prio <integer expression>;3 i' {; i9 o& G, T4 m' }7 [
; L6 q6 ?1 V# O% n) G% b$ L4 T5 k+ M& ]: J, s- K
以上为常用的函数！
7 ^7 c( ?3 F# J还有很多，如有需要我把资料发到你邮箱里 # h8 d# Q h( d1 \- X
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