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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
7 q, ]' g3 K+ I9 w: K2 b elseif <condition> then/ `) y0 z9 Q) X2 S% T4 x0 p
<statement sequence2>;
6 x: M; R( o; X9 E else % \- ~9 d+ o% S- j) v
<statement sequence3>;# i5 E6 C3 c+ |
end;
" u4 ]& s) ]' F2 d4 h9 m如果分支比较多，用：
0 ?( U& i' c5 M inspect <expression>
& j: | a0 x/ O when <constant_list> then# E7 P/ M0 n$ W
<statement sequence1>;; T5 f+ \" c; \
when <constant_list> then
- h! n$ F. `/ j/ u <statement sequence2>;
% l- E% M0 w% @ n4 |( x( F1 Y ...
0 i/ q% q" B" F0 D6 D y3 f; _ else
8 d3 u7 ^# z4 `) Q0 }7 l <statement sequence3>;
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% b+ X# b1 I& a2循环语句
1 J' s- b" h8 `/ { (1) from <statement sequence1>/ H& b/ D! R5 S4 e: T6 u! `$ J
until <condition> loop2 p8 U4 w8 I$ b! U4 t, N& {
<statement sequence2>;2 ~8 U6 \/ C6 v, R; D. x
end;0 a' x/ `( K- V8 k, n8 Q9 R" i
(2) while <condition> loop' i$ ~/ B3 F) M$ U
<statement sequence1>;9 f, M3 x, V1 w
end;
; `5 r3 b/ b8 @ (3) repeat
. y* ] x3 |8 ~2 J- E <statement sequence1>;
" d8 j' x" u; ^6 X until <condition>;
5 L# J- r) W/ P (4) for <condition> to <condition> loop
W8 U7 u& ~1 ~% T( p# q <statement sequence1>;9 _7 Y8 J+ D( i% Z5 ~9 I
next;, j2 a/ C( }6 u1 C% a
3中断语句& x8 F; g' }2 c7 s% X$ f2 l: |
waituntil <condition> prio <integer expression>;
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3 B! a. k% F( p" A% @: i( ]7 }+ A+ A以上为常用的函数！
4 }! {- P, E. M9 l& Q还有很多，如有需要我把资料发到你邮箱里
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