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发表于 2012-11-13 08:48:12
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1判断语句5 v* B4 j) F n/ a
if <condition> then9 {$ T) {2 @$ b2 ?( K/ ^
<statement sequence1>;
) L) U) S- X% ]: e7 i elseif <condition> then
H" w/ ~7 K% T$ w% U <statement sequence2>;
$ y, @: A7 c$ |0 o* }+ ~) ~! L else
0 ?, [# g- T% ^( z% @. t <statement sequence3>;
% X& W3 o) F- c/ p end;# ?+ l8 d: |2 f: Z1 A+ `; o
如果分支比较多，用：7 C' i( n7 m7 i- E7 X
inspect <expression>3 I$ r- u V& U/ {; t) R
when <constant_list> then9 U p R f( D" v
<statement sequence1>;
- K6 E4 F, q5 q- V; Q) r when <constant_list> then* O9 _9 @8 j% m' w2 k5 d
<statement sequence2>;
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else
+ i' t. ?1 h. a) [- z <statement sequence3>;
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9 T3 g' @: g- c' A2循环语句. X1 ]6 _2 L/ x2 C) T3 r
(1) from <statement sequence1>
. u" e5 Q8 O! ]* e7 K3 q; y4 }8 v until <condition> loop
7 |. q- [( Q" r/ I% e; ] <statement sequence2>;
% V! ~$ T7 r8 s. z( P* p2 I end;3 G- |; {, y5 C2 s/ G* C
(2) while <condition> loop
) M- J: C' ?! S, [ <statement sequence1>;
, y* B5 C! s9 Y end;6 o2 [/ u( F5 U' m
(3) repeat
. h' `+ t' O& a# \# u$ _ <statement sequence1>;4 m7 b5 X2 r7 l, ?" W7 t8 j
until <condition>;& u4 t/ r5 p, i6 u
(4) for <condition> to <condition> loop
. m! p. @8 }6 p- q( c9 J1 @" I# b# w. G <statement sequence1>;
0 P3 G6 w) I' m" I- D4 V next;% T, s6 l7 S3 I: Z
3中断语句* Q/ b1 L: f' J' T9 s, B8 o0 c
waituntil <condition> prio <integer expression>;. H Q2 N1 }1 g1 e# t( F
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; X# I$ z9 ^, G4 N% u以上为常用的函数！
: ^$ _& \8 q: A3 @还有很多，如有需要我把资料发到你邮箱里
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