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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
# v' N( T" n% o$ _ if <condition> then
6 `' C/ v' l( H; z0 F <statement sequence1>;$ o0 g- M/ m) z5 W _1 q. ]
elseif <condition> then6 o9 Y' Z D/ \" r* A' P' p
<statement sequence2>;
/ l# m( c. S$ \# N4 p# N else
# h. |6 z; R o& B3 g <statement sequence3>;
2 }3 Z- V& v" l4 g& x end;; x: A3 K4 b- W& _4 K/ }7 ?( N
如果分支比较多，用：
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when <constant_list> then: J. j1 e: x$ C2 z
<statement sequence1>;, y8 ?$ ~( p F4 i) b; X# L
when <constant_list> then Z, r, k% ^! `
<statement sequence2>;0 O+ y1 M2 ~! F7 \( @( M- G; L$ H$ S
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else
$ R# ]1 ^! N# \+ p$ F0 n <statement sequence3>;
6 y' {- `9 n: {% N2 xend;
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2循环语句
9 u; x0 i4 E* B. `3 z* _ (1) from <statement sequence1>$ R, L9 j. B& i
until <condition> loop4 U$ ]+ I. m/ _2 S% v' p( `
<statement sequence2>;8 Z: _1 B% {# ]: `1 U- ~
end;6 f' G/ g9 P. L8 x( `4 n
(2) while <condition> loop/ O* } j; n6 z
<statement sequence1>;4 k( X8 {! I6 a# J) X1 K/ {3 `2 u
end;
( V2 `( ~' S# C (3) repeat
9 B5 h; G2 K$ \ l2 t <statement sequence1>;
' z, V) e: j, p5 c3 `/ u9 d until <condition>;
7 z3 C: n) G# x. b" X( t- w4 m (4) for <condition> to <condition> loop
: }- G6 A0 M4 C' k+ L <statement sequence1>;
p c) T6 D. F" f* l next;8 c* f w( _' G6 z* F
3中断语句+ l3 _8 c% a- X6 w6 a6 {# W! p! H
waituntil <condition> prio <integer expression>; e& t& X- N3 ?' `) l% u
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3 l: L( K0 h% U/ L' A; t以上为常用的函数！
: t9 L- H- ^4 d: m还有很多，如有需要我把资料发到你邮箱里
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