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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
# T0 q- e+ I6 y. i8 q4 y( v if <condition> then
# @6 p1 p- k* t8 s <statement sequence1>;, C, q* f0 _+ E( E# }
elseif <condition> then
6 I* i: }$ z8 k: d <statement sequence2>;
% N( M9 O; l; ] else
& T z' ~( I( b# T2 v- ]) ?1 X% \ <statement sequence3>;
* I' a. q$ e/ V* f, N$ v end;
; T7 ]# z6 v! `如果分支比较多，用：
p- y; U0 j0 O* _9 V inspect <expression>
. [+ z3 ]3 e! s5 G: D8 Q% O+ q( v when <constant_list> then
* o+ c* e. b+ l <statement sequence1>;
" h! k, K/ y# d% |$ T3 I# w, p2 R6 @ when <constant_list> then
( d) p. Q" p9 D6 A3 `0 F& X3 c <statement sequence2>;
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else
7 l- h* F4 ^& N' m <statement sequence3>;
0 C8 a+ R- i: Pend;4 Z; \/ M3 K" g$ ~. A) @- ?
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2循环语句
* h* M8 K$ ?' T (1) from <statement sequence1>* h" a. c" C" E. H* L' {! t. i
until <condition> loop" S. [- Q# B+ b: {; c: Y
<statement sequence2>;
7 O/ q+ p: |! g$ G% z$ E. {3 [ a( ? end;
' J: L: C0 v! o" @+ z% x8 G/ s+ H (2) while <condition> loop
2 N; ~$ B6 e" j, e5 F8 f: @ f' F <statement sequence1>;6 W% ~. |! N/ Q3 H7 f' q
end;. q, C, b7 X2 L' m
(3) repeat 6 N, W6 c, }& k9 o4 c4 L9 O
<statement sequence1>;3 g( {7 \, `+ H+ a. R! o! f0 ?7 x
until <condition>;
, G8 Z0 R. o3 i$ {+ x/ k, a& } (4) for <condition> to <condition> loop
$ ~: W$ L- m/ j$ P/ O/ N <statement sequence1>;
+ V$ D- P3 y9 q* {$ y6 Q next;
, o7 b' ^9 E I8 x( ~3中断语句, C4 k% z& J! S5 `
waituntil <condition> prio <integer expression>;
! L' ]+ x6 x% ?5 A5 c X. j/ K; {, }# _4 ]: l; M: ` u( }" V0 l2 [
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以上为常用的函数！
2 \" l% G6 w9 L( r6 U+ |* V7 @7 [2 P8 T还有很多，如有需要我把资料发到你邮箱里
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