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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
! |" Y4 N* s+ W* a [% S- L if <condition> then8 L2 B$ `" {- V. F+ }
<statement sequence1>;) R7 \' g9 l5 K1 R" L& G+ b
elseif <condition> then
# K8 T" Q' D$ F2 O <statement sequence2>;
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<statement sequence3>;' a# ]& C& \* q+ P
end;4 T, |9 e" R* [1 o& C2 d) F, L
如果分支比较多，用：
# R7 t" U! ^; @1 n# _# H. v: a0 ~ inspect <expression>4 c" F" O! I* T5 e7 m- X
when <constant_list> then8 K) g9 J% c P: O
<statement sequence1>;3 k# |7 K1 Q$ M9 F; \0 }
when <constant_list> then8 ` t7 @4 L7 c/ H
<statement sequence2>;: X' o5 z, K' H8 E7 o
..., L% c, t0 `8 f7 @( U/ e
else" S! M/ A; {, C! k" M0 T. X
<statement sequence3>;3 M) u% d9 C S$ b
end;" h3 B5 u7 V0 U b
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2循环语句
) q) o. \: z0 p (1) from <statement sequence1>
' R' Q# i% L! ?& O until <condition> loop
, z) e: O% w4 m0 g1 ]8 }5 H <statement sequence2>;
$ Z ^* W' L7 z end;
$ t X3 A9 V2 G% X {4 E0 Z (2) while <condition> loop5 h( `2 i% N" h$ Y! A
<statement sequence1>;( c R+ W0 x& ~' c2 q0 _% k
end;- `0 W9 S1 [+ G5 }$ }. h
(3) repeat
l( A: H4 \. G6 C$ y# @ <statement sequence1>;
; z( g) E. b9 E5 @, `6 h until <condition>;7 k; E9 j! R& }% y3 p) M! R
(4) for <condition> to <condition> loop) }6 X. f, ?7 V" j
<statement sequence1>;& Y5 t( B% G M! L+ {( V
next;
5 C" K5 r, C; r% N/ E( I8 M" D2 C* G4 a3中断语句 \. }/ v/ R: {& J7 P2 R: }7 @
waituntil <condition> prio <integer expression>;
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, D6 \" s! o' h: q! O& y以上为常用的函数！1 H7 K" k0 I/ E. R
还有很多，如有需要我把资料发到你邮箱里 + x* i G/ }0 H+ W+ d2 c
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