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发表于 2012-11-13 08:48:12
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1判断语句- g& |8 @. M# g z/ N0 A, a
if <condition> then3 ~+ y0 Z: V' b& j; F9 A
<statement sequence1>;0 e% ?3 T; W* F7 E4 o
elseif <condition> then
2 C: N1 A8 X4 P <statement sequence2>;
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<statement sequence3>;9 H4 T3 G% n0 N2 H" p! J. Y
end;6 l9 M8 _& W: g0 k& G/ d
如果分支比较多，用：
+ l% O' L, L! v. T* t inspect <expression>
( t( N, u1 z- R3 ~1 i- z when <constant_list> then
1 F8 |! ?4 ~0 b& T7 @- j2 @ <statement sequence1>;
$ e; ?! B9 l1 [- t( N+ V when <constant_list> then8 s- `+ F' U1 X6 Z0 G8 q' y
<statement sequence2>;2 r( U2 @# s5 z- n" d F
...
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<statement sequence3>;
' M" \/ O$ b0 D& a7 w* I' Lend;+ m9 k. `4 q7 j+ i
d% `" s, ?; @: Z5 n2循环语句" e: g4 m- F7 u: E( `) _
(1) from <statement sequence1>
; ?; [4 p" Z4 A until <condition> loop: ^0 U# N8 }$ e. x- d; r
<statement sequence2>;& {5 z0 M$ k5 b2 I: s
end;
4 N: v* L. e* ?! e: b" ^ (2) while <condition> loop3 S& O4 B9 k! A- T
<statement sequence1>;2 m( i# m) }- ]9 ]; |2 Y$ g
end;
1 X$ F" S2 X6 R2 x. _3 x" p (3) repeat # V2 [* }2 V2 @6 o3 i* c
<statement sequence1>;4 [, K, C0 E5 w4 J
until <condition>;7 X U; @# e3 N7 G
(4) for <condition> to <condition> loop
* N. P8 R2 l+ `! h' s' A3 e <statement sequence1>;
9 A7 L L6 z* l& l8 e# `( o& ~* a next;
8 k8 z- P8 H2 \. g; ?: i3中断语句
( p8 z5 c, o; C waituntil <condition> prio <integer expression>;
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5 E0 o# ?9 X' c# {' U: ^以上为常用的函数！
1 W/ z1 O' R7 ]$ o9 [" z还有很多，如有需要我把资料发到你邮箱里
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