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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
+ H/ c& z" \0 _( h" u) z if <condition> then) u `6 _) W; b! V
<statement sequence1>; i$ y, q- Q# Z% m
elseif <condition> then
" \; u9 \, Q# J7 y$ v" W <statement sequence2>;
! r9 f: j9 j4 Z L. g2 ?8 S0 T# c else
* ^& I( N+ x m3 W Y, G* u( |9 p <statement sequence3>;
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如果分支比较多，用：
; c4 Z0 ^% p1 E: s2 Q inspect <expression>. R1 S1 g; k# T+ x. ? H/ X
when <constant_list> then! \. V H6 y2 y' C, A1 e7 i5 T
<statement sequence1>;) w# U6 P g" L+ a! t$ z
when <constant_list> then4 [7 P3 X4 @9 t7 [/ N+ V
<statement sequence2>;
& T( g" q7 v+ a& a6 _: d+ l; p ...
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<statement sequence3>;. n! Z7 Y& [% v
end;
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2循环语句! ~4 e% h: k6 r5 d# ]
(1) from <statement sequence1>4 m; b5 G) ?0 |; q/ k; \
until <condition> loop
/ @7 h$ k' M( g8 l- t <statement sequence2>;
! |, Z5 H( J& p! R% D end; j3 G1 m2 o" y9 r0 y9 _, y+ J
(2) while <condition> loop- w1 D: G$ p3 h. i. V1 V& n9 r
<statement sequence1>;8 Z- _5 ]1 @: u1 w9 W4 C# ]8 a
end;
& ~+ q6 j1 k4 v% l (3) repeat : d$ B9 t2 q, Z7 S# {
<statement sequence1>;
$ y# K; |' O, {+ ]# `. }& Q D( l until <condition>;: D. p% I$ H9 v h
(4) for <condition> to <condition> loop' q2 B* M z* X6 V0 S
<statement sequence1>;$ H$ ^8 K# l a: k
next;' ?4 W/ Q O7 V' }& V( T) L) k& J7 h
3中断语句
; @: [; B) v0 Y+ D0 o) Q; v waituntil <condition> prio <integer expression>; ~1 S: _" B. O
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8 y" h* N4 Y6 l. x" x0 Q0 F5 L以上为常用的函数！
$ n, _9 H% ]9 c4 } e6 d还有很多，如有需要我把资料发到你邮箱里 * A& r" {$ P% \
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