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发表于 2012-11-13 08:48:12
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1判断语句. T3 w p+ ^/ j4 G* A4 s2 S
if <condition> then% R6 \, j; n9 x5 D5 ?
<statement sequence1>;
; I& Z$ G9 o( @$ D$ N+ c elseif <condition> then
( k% t( O c" N! N- p5 W3 B <statement sequence2>;; A, k4 b* ~6 w( ~- x1 N( _ V
else - ~/ X& \5 r4 ^# {+ l
<statement sequence3>;
: |9 [. _' u) \1 A6 Q& u) N end;
8 F# c, E8 E% h3 k& z+ {如果分支比较多，用：3 e. t- k. A" G. b
inspect <expression>
3 x3 z/ p- n- @- R- O# x when <constant_list> then5 W! q, W0 f$ R$ v5 z) L
<statement sequence1>;( Y% E5 J& x" b( V% Z' u1 x) |# E
when <constant_list> then8 M1 E$ h: ?- b$ Q. p
<statement sequence2>;
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else+ l9 M9 _; H" D/ e
<statement sequence3>;$ q9 w, j* u/ `$ K9 h9 j% t3 ~) f
end;* T# `; | d9 X( s, v
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2循环语句
3 w2 K, g& i9 `2 Q* J/ y' g3 ] (1) from <statement sequence1>9 e b/ P5 ?4 z! k: E
until <condition> loop
0 J N+ v) v6 {: m9 j <statement sequence2>;
m6 c, \" c4 t: F5 m end;
, Q( _8 I' B* g' t- _3 S* p (2) while <condition> loop
' f5 @, n# D! m <statement sequence1>;
1 [9 p' r$ B* E" Y/ Q9 T' |' i end;
O' h* r; R' b# v (3) repeat # r. w$ u, I* S0 H' P5 ~
<statement sequence1>;; u: Y. @. V2 M3 S2 O% w
until <condition>;
( @# |+ I( g# P/ J (4) for <condition> to <condition> loop( q, g' P' ^% t Q- B }3 u6 k
<statement sequence1>;/ e4 v L8 }) B# g" X
next;
0 o& m7 v- O- s) z3中断语句) B z; ^. X7 B: U2 [
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
8 i0 C( A% b) r/ h- G* d) b, W6 c还有很多，如有需要我把资料发到你邮箱里
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