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发表于 2012-11-13 08:48:12
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1判断语句
; Y# v/ v5 f# ]# L1 t% p7 b. \7 s if <condition> then4 G v9 a# z/ f. _6 a1 _0 w
<statement sequence1>;
/ Q" d$ w3 E5 K; r: E elseif <condition> then3 z( P- }- g7 s
<statement sequence2>;4 v" U* Y7 M1 y
else
) m4 C/ B* N7 w. Y3 k6 ` <statement sequence3>;$ n1 B9 I2 f7 Q6 W' \
end;
7 }$ x; b$ o. s% y0 l2 s# l如果分支比较多，用：9 V+ g. i" x* l, H: N+ t, I$ F* b
inspect <expression>! R; Y; w% i$ ?
when <constant_list> then. D$ ?+ y" S9 t" h! O. c G
<statement sequence1>;
, N* C8 q8 M: i when <constant_list> then
; ^4 Q) S' d! t$ @# q) b <statement sequence2>;
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else1 \8 d9 _4 m; J8 I; g
<statement sequence3>;
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. W( ?. T- A5 r+ j e2 D9 |/ K" q2循环语句
! D! W% A9 }! K6 \1 a/ o% z& h (1) from <statement sequence1>
9 }. [" {3 r+ l" v% ] until <condition> loop! a) X# W8 G% B. @
<statement sequence2>;
: Y+ w+ y# Y9 [# F- K end;8 S9 S' b# }$ }9 y- f' I$ z1 R
(2) while <condition> loop1 ?3 z, H6 h0 C
<statement sequence1>;( N& c4 A( g8 u1 ?& K
end;# N* c f' N7 [3 i; w* L5 h1 q
(3) repeat ) K G, i+ c$ r& P/ j/ O# I5 I& d
<statement sequence1>;
7 q! _" n0 E: z until <condition>; V( V# ?( \4 M
(4) for <condition> to <condition> loop
( @* C/ y2 W( T$ k6 g; D$ T1 \ <statement sequence1>;/ f0 Q7 x! H) p" h% }+ u* j
next;
, C; k/ g% U1 j; ?* S' @3中断语句
4 L9 G* _) W+ ^# {" z0 \7 q/ _ waituntil <condition> prio <integer expression>;9 }4 ]4 ^2 [8 ^; G1 T6 C
8 ]- f) M. y1 @6 \3 P. J$ }, l+ L* `/ A/ j8 E7 X
以上为常用的函数！, Q# \( ~+ R& ? }& T/ E
还有很多，如有需要我把资料发到你邮箱里
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