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发表于 2012-11-13 08:48:12
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1判断语句
0 |# ]( `4 J7 I+ f& } X) B; n1 ? if <condition> then
/ r) `, D. i# ]( _7 U; | <statement sequence1>;
$ p1 y' f2 M& l- h% C elseif <condition> then! _ c- j4 ^! z# |5 @+ n$ ^8 D
<statement sequence2>;
8 P" e2 W- y# C2 F* N Y' ]: K else : A# z7 O. u% w" q/ j( B
<statement sequence3>;
) o- Q' ~" H. p1 i end;
6 n% A j7 V. _! N如果分支比较多，用：
& S$ }% [6 R/ q+ {5 Z( f1 C9 q inspect <expression>( V+ R5 {" O- L9 ~% g3 ~
when <constant_list> then) k8 ]* W& ^8 e: j
<statement sequence1>;. |6 A2 o; H3 s0 u% V, ^" Q
when <constant_list> then' p% X8 A- O( V/ u. c7 D" b+ a( H
<statement sequence2>;
" F! o1 y" |) E3 U" e" G3 k ...
: B$ c! o1 n; |: d9 z else
) f% ?; Q: V1 F: T3 v <statement sequence3>;
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5 A6 u j" m Y: g# w* X! B1 w* K: `2循环语句
7 ?' ~+ I% q/ m( z* C0 g (1) from <statement sequence1>2 q; U3 k7 y* A& b$ B
until <condition> loop
% W9 N6 z* f4 G" O3 n8 x <statement sequence2>;
! ?6 ?* V; y& M1 a, N end;
2 r' f4 f& V \' H4 G- c/ w1 t! l# b (2) while <condition> loop0 J5 o* y9 }+ _8 [
<statement sequence1>;) S2 h# R! J6 S9 Z4 {
end;' J5 X6 K8 H0 g8 q- B! i
(3) repeat
% v& F* n/ |5 N) Z" L8 L <statement sequence1>;9 o! r& F" \" m1 U$ G+ {
until <condition>;2 _8 }% d6 k5 T9 e! b
(4) for <condition> to <condition> loop
! E' j" D+ q8 e% S, K' ~8 h <statement sequence1>;
/ w, h0 d$ f) w2 j next;
; f/ y: U; x; i; R3中断语句
7 s# a/ j, K( P+ w8 d2 v waituntil <condition> prio <integer expression>;4 ?0 O% R1 C! m) k, s2 L
# r2 a9 m! R; g& k' m
/ ^4 A |: ~; `* B3 F, c0 U以上为常用的函数！+ Z- c" o: j" a7 x
还有很多，如有需要我把资料发到你邮箱里 / a( y2 Q9 l5 ?% I
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