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发表于 2012-11-13 08:48:12
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1判断语句
7 n( v( r5 D& Q1 ]4 a, u if <condition> then3 l5 N3 k4 K+ H Q$ ^3 m
<statement sequence1>;
* a9 W) F3 a2 m C1 s k% w& q; c elseif <condition> then
6 d" n! \4 x+ O <statement sequence2>;
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<statement sequence3>;
3 R) j4 F$ t- E( |8 [- b# l end;
9 j+ W7 @: j# D; Z" D) h, C% X9 r如果分支比较多，用：
/ b; p9 O* `% H& U; m5 Q9 j inspect <expression>1 _: }/ w8 b+ D8 F3 c
when <constant_list> then5 R; N/ |! Y/ _* y6 n
<statement sequence1>;8 y. S2 K. \# R) j$ o1 \
when <constant_list> then
8 `; Y2 ], M% q8 e <statement sequence2>;
, \" [% s J( q" Y ...
# H" e& O* ?0 c+ h Q else
) w, @5 _( o* E* Q* _/ \0 X4 |* m7 j* { <statement sequence3>;
h" }0 x1 V1 F8 iend;) b, }0 e7 O& w
8 O! |6 C1 Q6 p5 {2循环语句
* T, E9 t2 g: ~+ i( ? I! [ (1) from <statement sequence1>0 ?( J; l$ K, [) G7 ^7 f
until <condition> loop
" k' \# {: |5 \7 d5 X. M4 ^7 @ <statement sequence2>;2 q& I& [' q+ h' d# q& G; A
end;
* y1 k" L/ G; t- g: G @ (2) while <condition> loop
4 e- E! t7 u$ |$ Q6 a1 b <statement sequence1>;" P; K; n# ~+ e1 @& x% W; K7 h
end;
( q: T% g ~' P* q0 L2 F (3) repeat 0 s/ q3 g6 l" U# A
<statement sequence1>;
4 g+ l8 G4 {& t9 M! u4 f# `& r9 r until <condition>;) g7 H9 U, d* F9 S0 D
(4) for <condition> to <condition> loop6 B/ p7 t" c% e/ J/ a
<statement sequence1>;' M) t% t" o2 }2 m& C
next;& G8 h* u% ^# [: H3 O5 `1 o, M
3中断语句
( k2 v, {* P6 h& g& M7 s4 b waituntil <condition> prio <integer expression>; N2 Z7 |7 b# }' |4 G: u/ G
; ^( I c% V% P+ E/ G% R; x$ p4 F9 s0 O& I O! J; m! \
以上为常用的函数！
( r4 V2 L$ c3 {; U还有很多，如有需要我把资料发到你邮箱里 ; _+ Q4 h; y& {! O
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