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发表于 2012-11-13 08:48:12
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1判断语句1 b, E! P0 y& g2 x
if <condition> then
5 S+ s' t5 v# K& L8 }. s" g# ` <statement sequence1>;
- E# m: T0 H& Z+ s+ g- d elseif <condition> then
( E" N; @7 E" y5 j <statement sequence2>;6 [( `0 x6 c* R3 \+ Y
else
0 L$ T% b1 }$ N( C <statement sequence3>;* _6 P4 w! r% ?3 B, Z
end;
5 \' U- g2 n3 q" }3 |如果分支比较多，用：
2 b V8 k0 g8 T6 e- X inspect <expression>1 n. ]2 \' M( e6 V+ X
when <constant_list> then
. t% Z2 T) R9 }8 d+ u <statement sequence1>;
9 ]: X7 t. R0 B$ K5 m when <constant_list> then: t. p7 f2 g8 S( B, L$ g
<statement sequence2>;
+ x0 K) R/ T1 ~9 h& l2 B ...
- M* @5 ~, [4 ]3 d& `8 q; R- Y! q else
- f3 l: Z& _1 J9 o <statement sequence3>;2 x) t5 W+ O7 Q/ N! r1 n" K P
end;8 i: t" @/ Z( [4 l% y3 R5 C
9 Z R0 X4 z( ` B; ?2循环语句
' a* z1 m# Q6 k+ z (1) from <statement sequence1>
! S3 |+ I4 G, s" J4 l until <condition> loop
; {* f {$ R) l <statement sequence2>;
9 P+ x) X* |5 X0 I8 n end;
1 i3 d' c2 f, p( b (2) while <condition> loop) d: p+ I$ Z6 n9 s6 R4 L
<statement sequence1>;
" D: w( `0 @( {8 {( j$ [ end; U5 z$ F) |8 s& s; z8 |
(3) repeat 9 u5 h7 d H: A/ D! ~
<statement sequence1>;3 m3 E, r9 S9 K0 _
until <condition>;
" M! H% X7 l! L5 H+ _+ |$ U (4) for <condition> to <condition> loop
+ R: L: y" v/ I' K! F3 h% U; y <statement sequence1>;+ T4 J. H% \: |& M: @0 {& _
next;3 H! B' G/ b! V+ L0 V5 t3 ^' p- s
3中断语句
8 H: z. W- K" Q* T3 s* u waituntil <condition> prio <integer expression>;
* }# S- O" Q: C$ l
, ~7 M* u R: U$ D4 M4 N3 \
& j5 N5 {+ c) E5 B8 A; l以上为常用的函数！
% M* ~' F( J/ y( c9 O, g5 d还有很多，如有需要我把资料发到你邮箱里 / `( c# K: O8 a6 a7 I% F# P: e
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