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发表于 2012-11-13 08:48:12
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1判断语句2 C+ _! N2 i4 g# m: V4 B
if <condition> then
0 O6 D1 |. K& x <statement sequence1>;
2 ]( h8 h) r4 s elseif <condition> then6 Q- K3 j. v) L
<statement sequence2>;
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<statement sequence3>;5 N6 |1 ?- U+ ~) g9 ]- v, }% Y
end;3 K" z' g. W/ j
如果分支比较多，用：
% @) L- E6 a" D$ @: X1 B1 A inspect <expression>! j$ l0 ^) [' X* t
when <constant_list> then
7 n' {: n4 n8 a$ R) s <statement sequence1>;
7 t* r0 u* b9 S) t; C. y) d when <constant_list> then% a7 a0 x( o3 |& `, S, {
<statement sequence2>;
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else2 u+ W' T1 n. c' c" S
<statement sequence3>;+ ]6 T( o! b1 c7 e! G2 v- F
end;
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2循环语句+ L! _* `9 y( V5 o7 W2 _) M
(1) from <statement sequence1>& u; g/ q: U) O0 Q$ U
until <condition> loop6 R Y3 ~/ t- g+ Q
<statement sequence2>;
% F" O: x* _( u7 p8 Q end;: d, c2 b* U: f/ W5 i$ o9 M
(2) while <condition> loop, }+ | U- R) H; H
<statement sequence1>;
0 l( V9 {! g- F0 x/ `/ \1 v end;# W5 p+ L1 ~% P5 _9 A8 t9 q+ ]
(3) repeat & J3 h6 M7 L0 h7 Z" L0 U
<statement sequence1>;& {3 i1 E8 `/ C( B( g* k
until <condition>;
) Y9 s1 H( k8 U" G (4) for <condition> to <condition> loop' E- T, n3 h! j3 |
<statement sequence1>;8 I% {- K/ i. P. L* `$ J1 d8 G
next;$ f) w1 E& M' m2 z! E! {, {; `3 Y
3中断语句
, x- j: m! [6 S! l6 Q% D waituntil <condition> prio <integer expression>;$ X- u* F* _# N5 Y f; R' X' s
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以上为常用的函数！! k5 p+ J. q/ E
还有很多，如有需要我把资料发到你邮箱里
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