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发表于 2012-11-13 08:48:12
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1判断语句
2 U# f- J# C6 y0 H if <condition> then
8 S; X' p; q: V& [+ @ <statement sequence1>;8 Z; r5 m/ k$ ]- n1 p8 v
elseif <condition> then
% K8 Z$ w! D- k/ f% Q' P <statement sequence2>;# M: k; ~% h$ T7 s# l
else $ {; |' Z' f/ ?7 |
<statement sequence3>;7 i4 r6 x: j" S3 m4 `
end;
" j& q. p' L1 \1 t如果分支比较多，用：0 _5 L. M4 b- [- q$ z0 R3 ?) X
inspect <expression>- d! d5 n1 z0 k4 S8 v H- B
when <constant_list> then- m6 c6 v/ K0 A$ [, v
<statement sequence1>;" S+ \$ e- Z( {4 \: t5 h8 r
when <constant_list> then5 J6 m- \- Q! G, }# H: @" W, M
<statement sequence2>;
% v2 v" [, _8 |8 k9 ?+ E ...
' j4 e# s4 o1 @, j6 p1 [6 N) h else
T9 c, B# z1 f <statement sequence3>;0 O- l2 `) {( i6 D+ N& R
end;& e" O+ w' m" S% p# d
' |: x0 E1 U/ w, s0 x2循环语句8 G" S; A3 ]3 A- F) P( D7 e
(1) from <statement sequence1>
! a9 \( ~- \8 L3 h$ U until <condition> loop
! w9 T3 a* H2 g) }, H <statement sequence2>;, t# s5 c' l9 m0 A, w& x% t/ x) M
end;
. C4 }' O9 D+ r5 v1 u/ C, J+ L (2) while <condition> loop& P' f5 ?) N" ^9 F% |% ], ]& j
<statement sequence1>;
2 v- ]* C$ |6 d/ U- h end;
; S, F6 F, R9 X6 V2 `. x9 E7 | (3) repeat - ^7 s2 j: b9 {- K$ t4 n
<statement sequence1>;1 w3 d- x% b7 L0 C# C6 l
until <condition>;
+ b9 o4 u& h* U! D. J! Z (4) for <condition> to <condition> loop
# d2 _8 L. v' l& ]9 A/ a8 y2 g <statement sequence1>;9 M2 N I5 T. E! @4 O
next;
( i* n$ B6 @9 w* ^+ E, ]3中断语句
/ H; m; R$ P/ i# m) J( B) b waituntil <condition> prio <integer expression>;6 C1 o! i/ _ ]# g9 c
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以上为常用的函数！
/ V$ j$ Z! B' E* j7 ` z还有很多，如有需要我把资料发到你邮箱里 9 y# N9 v( S; ]% v& H0 x& I9 X/ W
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