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发表于 2012-11-13 08:48:12
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1判断语句1 x5 B( B+ c5 J. Y9 y G
if <condition> then) O/ N6 Y( q4 \9 Y9 V9 Y
<statement sequence1>;" @) w5 y3 r1 @" A) f
elseif <condition> then, z2 Q( F e( j/ p
<statement sequence2>;5 s) h3 s+ q1 m1 A/ Y
else - x. N1 W, H% B% b7 j: H
<statement sequence3>; W8 b0 U& h. \0 h: ?( F
end;
9 J1 D7 d/ ?$ E# `8 V# F* ]9 J* S如果分支比较多，用：
" }& v( `1 }5 Q0 `2 Z4 R* ~4 N inspect <expression>
' V% h9 a1 s. s when <constant_list> then
% U I4 |5 N0 r5 P- Z; S6 j <statement sequence1>;
/ M; I Q p) u2 F when <constant_list> then) ^. w# n4 ~4 V2 g7 ?
<statement sequence2>;
; x% ?. P- k4 [2 y1 H% [ ...
; e) l: ^7 ?+ U0 ~+ q9 } else
$ V& m% h1 e0 f t5 h* g- C& T <statement sequence3>;
, S2 d! p W1 n1 y: Kend;
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2循环语句
: Y$ m0 H9 u4 W/ C+ @9 c7 ? (1) from <statement sequence1>, \! B* I! l! ?
until <condition> loop
) i. I o1 `4 t2 L$ G <statement sequence2>;
, Q4 R9 Z( g% s- i' l: [: A end;
* ?# S- ]& W- g3 r" Y6 j3 u8 M" A, b (2) while <condition> loop
- p2 f( O9 [5 @' k <statement sequence1>;
9 n4 w' _( K$ c- o# E: S* ~- A end;
( }1 _, c9 J$ M6 K9 D (3) repeat
2 R# N) a( A; Y% s/ {6 O& d <statement sequence1>;
! z: ]9 {3 J' T; f* X9 O* V1 h( ? until <condition>;# H f' w# j6 Z5 ?, m. ^1 j
(4) for <condition> to <condition> loop6 y& _) ?: {7 t# V% {$ |
<statement sequence1>;6 B4 j0 F* I3 w* {3 ]' l7 N5 R/ H
next;& k! ?4 S% |# Y- Y
3中断语句$ R8 i% i" t7 e5 O7 T
waituntil <condition> prio <integer expression>;
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: _6 }0 p/ ?! H+ ]% m( g以上为常用的函数！
, Y" n) O1 s W还有很多，如有需要我把资料发到你邮箱里 0 [. Z, X5 K7 X: S+ T4 ^8 |* \
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