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发表于 2012-11-13 08:48:12
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1判断语句
0 d0 Y% s" e7 ?: _8 N if <condition> then3 r* j q8 M& L, R* @
<statement sequence1>;2 l5 j& B/ b% z0 b" Z1 x
elseif <condition> then ?* g) A+ Z! Y U' b+ f! j7 @
<statement sequence2>;% P2 K9 W; X2 H* V3 q. u
else + P+ f# c: Z+ V; U& o2 z4 E9 r
<statement sequence3>;
0 j% t x& O& N/ b( p( S! x) c end;
; O0 n" H6 h9 n B. s7 U如果分支比较多，用：3 g2 x ^$ q) k: H5 n- f8 L
inspect <expression>
( M" a1 ^+ V/ b# d+ c when <constant_list> then1 p! X R1 U& D" k3 W5 A' R( j9 D* f
<statement sequence1>;2 ?5 Y1 w: B9 f$ R8 }
when <constant_list> then& c. W) z# p v
<statement sequence2>;" s/ y! q9 G2 e2 n) [
...+ h+ E2 s% _! h& S
else1 _( s+ j; p6 c7 S- I) O
<statement sequence3>;% I5 u o4 u; x4 k' a. N( ~* ]0 _
end;& M3 @1 K- ~1 q( k2 ]) @
# u- P% e' t# o* Q) P# n ^2循环语句
) Z3 {8 R. S, @5 t$ i) L (1) from <statement sequence1>* W- O2 r4 o3 L: L3 V1 W/ z/ K
until <condition> loop
5 |' f' g0 W" T7 q <statement sequence2>;
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(2) while <condition> loop$ u$ j* {/ _9 P
<statement sequence1>;) @+ w3 ~! p9 l2 c2 ?# R
end;6 K I5 I4 g( i" t& k
(3) repeat
. x5 \: d, q; A) u, U <statement sequence1>;
, z2 z" K5 l4 E, Y until <condition>;
; f, Y4 ~. K3 w1 o% ] (4) for <condition> to <condition> loop J6 y" Y" E% w, g& \
<statement sequence1>;% v7 V w& [' o9 s. B% W% ?4 o6 _
next;4 P+ A3 `% ~6 I2 x7 |7 x0 c
3中断语句
1 p" }- p H# M: M7 Z waituntil <condition> prio <integer expression>;; F- `9 [2 x1 E* j: U
9 t7 b1 O3 D l$ u; E1 b) G3 a+ [2 a( G% Q. a1 C. q6 {
以上为常用的函数！
8 [7 J- y8 z( }9 w6 O: `8 ]还有很多，如有需要我把资料发到你邮箱里 $ H, L9 v" z: I$ T8 ]
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