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发表于 2012-11-13 08:48:12
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1判断语句
$ J( U2 i- j0 O0 S5 a: r if <condition> then( D* i: Z& l% F. {% u) n
<statement sequence1>;
0 T# R5 H4 @& a& \7 E' K6 a elseif <condition> then
5 }+ t; ~$ b1 P9 d <statement sequence2>;
+ b$ L9 K, X6 H& w( M else
; f) I5 Y% k1 ^' z. m( ? <statement sequence3>;
i8 q2 u9 F' V end;
4 ~7 S; E* q4 t8 b7 t* E: u/ b( y如果分支比较多，用：
4 c0 i7 _& E) f' \5 t6 ] inspect <expression>% D$ j3 |+ _+ t; L, ?* D* J
when <constant_list> then% m& V; y+ L) H) x
<statement sequence1>;8 z! |8 A9 A- ~1 d: |) T& C0 c/ M
when <constant_list> then
- A0 F! b6 b8 u- I* k9 f <statement sequence2>;
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else
. f+ v1 ?6 {/ ~3 |$ s- l9 v <statement sequence3>;8 I9 F* N4 s6 X* n
end;1 O' @7 P0 E3 E6 J' \5 T [" `
; f8 I) t5 Q: e0 K2循环语句0 f/ {$ v; i6 J+ K7 N' N- T
(1) from <statement sequence1>
, m( ^: l7 J; l7 J+ `1 ]) d until <condition> loop) w9 k$ v: H% H5 R9 I
<statement sequence2>;' Z- a) M/ J7 K+ o( N
end;8 U3 s2 J2 x8 ~; A2 s# m
(2) while <condition> loop
% @. h6 z" G S- n <statement sequence1>;1 n+ y- J& g: D% l+ x8 i
end;
' ~3 P, U) y# M S$ W6 W- |" U6 P (3) repeat 8 B C: M% q( D- d
<statement sequence1>;2 t" H, O! |- Z" ]5 Z
until <condition>;
6 h s1 x/ i' B9 ? (4) for <condition> to <condition> loop
3 }% N `% W$ X- F( t$ S9 a2 N <statement sequence1>;
- |' {5 `4 P- g* z next;
( N3 ~. {$ _- Y- y1 z4 `% u M3 h3中断语句$ x1 G0 s. r, d/ }- Z6 x
waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 b* N" v1 `6 ~) I
还有很多，如有需要我把资料发到你邮箱里 # \ Q! h1 _7 W5 Q8 G# P( A- S ?
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