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发表于 2012-11-13 08:48:12
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1判断语句
, w* p3 X2 S1 D, L! A: w0 _$ t* ? if <condition> then* U1 B) r! N: `6 a- b/ a) z0 ]
<statement sequence1>;
$ n& j" l* F& Q1 i elseif <condition> then
0 b" S: e1 X% Z" _. g <statement sequence2>;
- ^6 }, O1 u0 k, ?5 d k* j. a else 9 i: T/ `* ^2 c; L2 h
<statement sequence3>;
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如果分支比较多，用：& m, s$ Y$ s% d9 ^4 M
inspect <expression>
2 e2 s- [$ _7 n when <constant_list> then
" C* m1 o: t, U8 f <statement sequence1>;4 U: V: g4 Y" Q: p+ g7 ~
when <constant_list> then3 Q4 F; j5 p. r0 l
<statement sequence2>;
: Q5 l0 m5 T0 |& P! e0 z3 b: R ...
7 D" k0 g+ R0 p) y% I: ^ else
$ F& T$ Y6 ]7 z9 [& N: L2 ?# C9 a <statement sequence3>;
, Y' h, y' I: l$ k( Vend;% \0 r' v3 ?$ M5 ]' h
% {, J3 P* ^. f7 e9 D# P+ |2循环语句
: C0 s% V9 E, x (1) from <statement sequence1>; _1 ]7 J Y9 |* C' z6 K
until <condition> loop
0 I& r- N, Y( j4 `6 N3 Q9 F <statement sequence2>;
; C7 Q" Y1 g$ k' c1 \7 e5 |0 \ end;
0 K9 s( J5 K4 U# H: Y+ d (2) while <condition> loop
1 t" M& {8 W% r8 m% P4 g <statement sequence1>;
7 N3 H$ w# I, I9 s0 d end;
. z7 \. o# k; t5 j (3) repeat 3 R- w0 `. ^% ?# d
<statement sequence1>;
% J; K: O2 ~/ Z9 O$ |" H4 a until <condition>;
- ?/ B$ X } H, {' V v1 R (4) for <condition> to <condition> loop
! | s4 F+ h8 R% U, H; p5 s <statement sequence1>;
x! S7 F; w# }& T5 ` next;
0 |; \) v) B' j E3中断语句
( N# G" F/ E& C2 {% \! |6 `# c ` waituntil <condition> prio <integer expression>;
! ? z: d3 E( ]4 ~: i* {8 }6 m# P, Y
7 ?4 q0 @' ~+ u/ z L9 f以上为常用的函数！ d, o- E! k& [' ~. M7 X
还有很多，如有需要我把资料发到你邮箱里
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