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发表于 2012-11-13 08:48:12
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1判断语句
3 y$ Q# R' Q+ t9 l if <condition> then1 x" R8 Z; U! D( Z6 t+ }- y
<statement sequence1>;
: Q$ K: j& q- W elseif <condition> then
4 Z% h1 v1 _' J( [8 S <statement sequence2>;8 v8 B# L# f0 D* ^( M8 v5 C
else . N) }6 V/ t: B- S
<statement sequence3>;
+ x+ x) M' n% n& a1 U7 M* s end;
: @$ _7 ^8 L+ [/ r( Q如果分支比较多，用：- ^1 A$ E& l9 L/ w
inspect <expression>
/ [/ v# r# V: ]+ S/ r! R$ O8 S when <constant_list> then7 K0 u; J- `/ f3 | @: [% G1 |2 q
<statement sequence1>;
2 B9 t, D- y# i9 l when <constant_list> then) B' B0 V1 }5 {: o3 F
<statement sequence2>;. y: d W# W# u! L9 e& p
...6 T* ~( l5 E2 A$ H& E3 w/ P8 E3 K
else
# c/ D# o- L2 S2 K9 `+ {+ ^% l3 |7 n/ W <statement sequence3>;- ~- K1 B v% K/ O T- T- T; Z
end;
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( N4 T, s1 A0 G, |4 _$ u2 f! j2循环语句
5 F8 o& G1 C& O: g2 B (1) from <statement sequence1>
" l0 k# w D3 J# t1 Y" f until <condition> loop
4 I8 V$ ?. T- x" b% E2 _/ s <statement sequence2>;
7 X0 b4 ^3 |- Q end;
% ?7 A" ^& z$ Z% O+ N. ^6 `2 B8 J# x (2) while <condition> loop( g3 d o& [% n7 ]# P
<statement sequence1>;3 S& s% ~8 D1 r& T( o3 E; v
end;. `6 t# @8 Y, Y _3 Z
(3) repeat $ w% L" ]2 J& U2 A- \+ t# Y
<statement sequence1>;7 c' I" ?' g% s! A4 t/ K3 m; W: G
until <condition>;
% r7 U$ B$ l/ B9 K (4) for <condition> to <condition> loop
# B9 ~, Z# x$ i: V <statement sequence1>;
N0 J s* T |( u3 E# r4 s! Y next;
' p( E$ M1 B o% V% V5 J- X) M+ e) ^) p3中断语句. J; M+ ~& j; H/ P( Y/ h
waituntil <condition> prio <integer expression>;! [) r, Q7 o7 z# i7 Z) d# t
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/ V/ R6 A9 g6 ^2 W# J; Q! K以上为常用的函数！% b. E# a: ?8 K- r& }
还有很多，如有需要我把资料发到你邮箱里 ' l7 g( O1 O W7 p8 d4 r/ \+ F
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