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发表于 2012-11-13 08:48:12
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1判断语句# _: b7 V+ P& y @) t
if <condition> then
5 D6 `' ^% E! S, Z+ A' P3 H <statement sequence1>;
% p' d# Y" S# f1 X- s2 T0 C elseif <condition> then0 @. [* u) M" _ z' v$ p1 f% j7 t
<statement sequence2>;" L5 C8 L- c! G+ i3 p3 T
else ; m5 ?* K3 N: H
<statement sequence3>;8 c9 s0 n# k+ w8 g: Q( T
end;
( q, j0 Z2 \( t) a. E' U如果分支比较多，用：/ e% ?! A- X2 \2 \% l5 C
inspect <expression>
# ]: K" ~) x! A when <constant_list> then1 s# h5 }1 \* d' Z; T8 U9 z
<statement sequence1>;& v( ]! R0 O7 f3 ^+ {
when <constant_list> then
2 {4 X" @( a) m- p( n7 {5 _0 P <statement sequence2>;# v9 B. C$ f4 \' P& f, J% R G( @
...9 a& y6 [$ p/ [5 q
else2 t% l# o" a' b ^: [
<statement sequence3>;* W4 w$ I; {1 c5 y1 o% _% @
end;, f" H. Z) ^! p# K- K* p# g
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2循环语句
6 j- H& y$ j/ S8 q% b: A1 X (1) from <statement sequence1>0 M+ X* v% x9 s0 z0 e
until <condition> loop
3 h- B0 V/ P8 N, b: k$ ]% ^ <statement sequence2>;
4 |* S* g" j K1 v end;
8 h- v% C1 t* a& j9 ?6 l (2) while <condition> loop
, S7 T! T9 {5 @8 R5 }5 I <statement sequence1>;+ P. y9 r' D6 k2 } n: N6 c$ S
end;& E* `9 h# F3 E {( A/ h3 z
(3) repeat
( `- Q7 v4 ]8 n2 [ <statement sequence1>;9 d% d; U4 ], G
until <condition>;3 h6 D- z( K }0 X. v8 c% p
(4) for <condition> to <condition> loop
* n" T* D; u. e1 w3 \ f8 W9 o: q% U- j <statement sequence1>;
3 u5 q9 H9 f: t3 X: r. e* P next;) l8 f% z1 {( Y1 V
3中断语句) u: u, B: L/ u, w1 l d2 G+ Y0 V
waituntil <condition> prio <integer expression>;# |* h3 m: Q9 q( z3 `- O
/ e3 ? ] T7 Y7 k" ?
8 w9 a' Z! k9 l以上为常用的函数！ h* s( ^ F G. j
还有很多，如有需要我把资料发到你邮箱里 5 y! ~0 Z5 X9 E& h0 H3 W, {0 U: X
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