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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
5 t! G- d4 @+ b) x6 d7 [1 n if <condition> then
! o0 n; f" s0 p/ g( R <statement sequence1>;0 M# G& n" V. f o
elseif <condition> then) n) H$ g& `5 c* P& {
<statement sequence2>;
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<statement sequence3>;
: y0 y5 H8 [ d1 ~2 p9 ] d+ _ end;
: e( x: Q5 Q' i' L% T如果分支比较多，用：
4 i. i6 m1 q7 H5 z/ } x; z; h inspect <expression>
. @9 z+ z/ _! D/ G% N: b+ t: L when <constant_list> then0 N3 n; z$ m- Q+ ?2 y# z
<statement sequence1>;
7 R+ n# [ Y; B* f9 g2 I when <constant_list> then- l$ P; C/ S4 e/ I! Y
<statement sequence2>;
7 R/ b8 B9 F* c( B2 E( ? ...- A" |8 { V1 g7 g j$ S7 U
else! }7 v$ P2 [! @( ?% X0 x+ X6 J
<statement sequence3>;
% Q, a! O+ t; j( u7 Fend;
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2循环语句
- D" T. z0 q- U( n! B. o! I o (1) from <statement sequence1>
4 F: q% X; E+ D until <condition> loop
9 L4 t$ n$ @9 `/ U3 h <statement sequence2>;
+ H7 V3 \$ \* a3 h) q end;0 m ?: o+ \& m8 W% q: v h( {! ?: \
(2) while <condition> loop
: D+ Q* _" C2 d1 {" y2 r <statement sequence1>;
# t) V( D8 Q0 [3 b7 T& i, Y9 | end;9 `/ w- ?# E- r& L$ W$ c
(3) repeat # J# i) @0 p# B N4 V a1 E
<statement sequence1>;! W! Y* A$ C! C' y, ?! y
until <condition>;
# E2 ^/ L- i9 S" A! e (4) for <condition> to <condition> loop0 H# I, n3 ]2 }+ n0 Z9 ^( z
<statement sequence1>;
( C4 X9 f+ w7 W' E; O next;
" b3 g& i. q) t1 @3中断语句9 O0 d* m! ~! r& E4 _7 i% `" ]) K
waituntil <condition> prio <integer expression>;
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! M$ w4 t+ s1 ?4 C( f- s以上为常用的函数！
& G8 q" t, |% }2 j& m还有很多，如有需要我把资料发到你邮箱里 : p) j, S2 z- l* m9 |! s
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