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发表于 2012-11-13 08:48:12
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1判断语句/ r7 |' g' o' b, Z" i* A0 Z
if <condition> then
* z. q$ M5 Z9 _) O3 N) s% G: d- h# c9 j <statement sequence1>;
7 c, L1 A# v# x( m elseif <condition> then
% j* @# z' U' m <statement sequence2>;
0 G I9 @5 x. d8 l, x+ b3 x else
: E0 Z- Z7 T& E5 @ <statement sequence3>;. o$ i9 p1 m% l0 b- C, ]4 `
end;0 ]% ~8 P! T- N: e5 R5 _
如果分支比较多，用：
8 I& g; l( s6 ]8 g# x3 X: Y' W$ y/ n inspect <expression>0 X6 n- S2 j: Y7 C! v& L! q2 w
when <constant_list> then
% c6 ]% O3 D- m0 ?" n <statement sequence1>;7 k" s2 G: P8 k1 a# X) d3 d# v
when <constant_list> then
& k8 ~% V/ y; h <statement sequence2>;
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else
1 P$ i/ L! q: c, i& W) X <statement sequence3>;
3 V: o2 g3 t* K* Aend;0 m0 q; @/ b9 |/ O# c/ }
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2循环语句9 s; ?& t. u$ w/ ?7 x
(1) from <statement sequence1>$ m2 q! g+ H1 s g4 h+ o
until <condition> loop
/ g; P- f5 z+ w3 { <statement sequence2>;/ S! w) Z1 C; I: U- F3 H/ R
end;9 X3 d! J. i3 b4 D
(2) while <condition> loop3 I4 r1 b/ Y' X( p7 O8 l1 I
<statement sequence1>;
) C9 d! u, x! E4 Q/ _6 Z& X end;5 {6 c. U! q% y8 N
(3) repeat
0 Z4 w. i2 H8 n <statement sequence1>;$ [" s' P- L% X' `8 o
until <condition>;
- e; V1 v) l% T" N) ` (4) for <condition> to <condition> loop/ G1 o0 }1 o) b. ^
<statement sequence1>;
5 c" [5 D: X( @/ r8 o next;
8 T0 j# O2 }6 r3中断语句
7 Z4 o8 E7 Q- v1 ^% E; H waituntil <condition> prio <integer expression>;2 u. T' v: T% ~
" \! a- t% e) }7 h- x) n+ j1 r7 M% l9 a
以上为常用的函数！# z' R ~% Y i5 S- p2 l3 Q( ~
还有很多，如有需要我把资料发到你邮箱里
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