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发表于 2012-11-13 08:48:12
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1判断语句
4 i0 f S; }! N* x$ `6 ^ if <condition> then& j, {+ O( i7 q6 q
<statement sequence1>;
) ?# ^& j& R B0 ` elseif <condition> then8 o$ o, B0 t% A% P4 l' \2 Q8 R+ A
<statement sequence2>;& ^) A6 Z+ I! \& f- W, S' l% d) J' F+ n+ o
else
+ x; O2 J9 }1 J1 P: J- Q! j& u <statement sequence3>;- x6 k! t6 R) w- K; b3 }1 {# n
end;0 ~/ k, P- v2 d" W$ e
如果分支比较多，用：
) K; [+ l" k; K8 b inspect <expression>/ _( p0 F) g5 ]) u
when <constant_list> then
( |: r& b6 ?( d) S7 l6 |9 j$ L, H <statement sequence1>;
/ V) ~9 m/ ^8 Q, j }; h when <constant_list> then
$ t6 ?9 h3 m+ e# q! L <statement sequence2>;4 q! F8 w* ^9 O
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else% Q! P- y) Q' n ~# q8 K8 S
<statement sequence3>;
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6 D. w- k2 C3 ~2循环语句
8 b, ~' n$ c8 T" H" H/ z, u2 s (1) from <statement sequence1>' z5 E# `9 h9 E! b8 ~
until <condition> loop* V4 E1 E- r5 W7 U+ A) s
<statement sequence2>;, a% \! @; l8 W) i7 T9 p
end;3 O" m$ c' l4 m1 {8 ~
(2) while <condition> loop
* o/ x# T, f$ V- N <statement sequence1>;
6 a# M2 P. h) U# \ end;' n* { K9 s% E7 p7 Y9 t U
(3) repeat 1 }% R/ M6 g) |# Q; s7 E0 s
<statement sequence1>;9 W$ L( m! O" C5 c9 @) ]
until <condition>;
. H4 h* U* G! o& n, E (4) for <condition> to <condition> loop
" j0 A f( G) [1 h; V. r5 d& s% ~ <statement sequence1>;' ]: ?, z3 X6 {0 N% t) D
next; z! ?7 R! A2 x" W; A0 h% k6 K
3中断语句1 p0 C0 f, A3 o6 S/ Y+ z
waituntil <condition> prio <integer expression>;2 j, `4 G$ `) P1 |" n9 p+ t
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; X7 P0 h0 T& E+ V8 T以上为常用的函数！
' D$ D. T- o9 Y8 v3 v/ u8 Z% R* b还有很多，如有需要我把资料发到你邮箱里
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