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发表于 2012-11-13 08:48:12
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1判断语句9 _% y: A8 [; v, K) @$ w2 i
if <condition> then4 ^) `9 f; g! U5 {0 j
<statement sequence1>;$ m" s/ c9 E- U1 G3 o
elseif <condition> then
/ K: |7 m( L8 K0 [* j1 ]# S, ` <statement sequence2>;4 T0 u4 c0 v! m. J: \0 Z% @
else . o' x9 Z5 v0 m+ z
<statement sequence3>;& R2 v( R# M/ x7 x) L4 U `5 u
end;2 p6 S: D( {0 k/ e" A/ A
如果分支比较多，用：. q* K2 L. F3 m( S6 }
inspect <expression>3 F$ E! M+ { F
when <constant_list> then* f9 G( Q6 b/ e" N" _$ i
<statement sequence1>;
# Q" K2 ^8 v" D8 x- u8 O when <constant_list> then
1 h+ a7 B0 W# Q: U9 y+ N' T- ^ <statement sequence2>;+ d8 ]$ Y* z! w5 [, X
...7 A6 I* H2 a6 P7 G2 p2 Z" i# r
else' a7 F$ T' P. f: x
<statement sequence3>;. U, G1 B0 q8 v# G& {' x& F9 Q
end;& C; T, i+ g8 V# v: F+ d; o( T5 U3 H
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2循环语句$ E* U' _. ?" V! y- t
(1) from <statement sequence1>
, a: Y# D3 u8 k- E4 \ until <condition> loop
% g% M5 V9 |: ]" y9 @9 U <statement sequence2>;6 T* F, v( l$ ]
end;. p& J5 K/ B- U7 d
(2) while <condition> loop
* X& @ q- O+ l: [# ] <statement sequence1>;
: D) ]. y- k" h* P; K" ^ end;
% ~( r, U8 Y/ p( M$ G3 x (3) repeat
% l# h' [* }( m$ v* Z <statement sequence1>;4 a2 }; M' y% V; N; F) t
until <condition>;9 D! G6 k! k; i' F4 e% c
(4) for <condition> to <condition> loop
0 Z& I* }6 f# b1 ^ <statement sequence1>;
`7 \/ {; F! {8 L5 A* t# S next;
, D5 @. J3 }! v3中断语句
& R# k2 g6 O1 @; ~ waituntil <condition> prio <integer expression>;
& Z- f2 w: U8 R! t/ ?$ s# h, j- A# J$ {& h% L: A+ S- F
+ @4 m7 k3 m" a7 [0 A. ?3 h. [以上为常用的函数！% K0 u) G% |3 v! v0 ^6 j! }
还有很多，如有需要我把资料发到你邮箱里
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