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发表于 2012-11-13 08:48:12
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1判断语句' X# {9 K% [5 @! [0 @* Y1 n
if <condition> then4 d/ A% L) {$ S
<statement sequence1>;9 o# c0 M% J9 {% z
elseif <condition> then
) H6 c, y6 G) _& ` C0 @; [ <statement sequence2>;$ \! ^1 n) p; ~1 |' f! h
else & a% l. r/ {( P9 \
<statement sequence3>;% M3 J5 u9 I: K' |
end;
; p6 \# F* S% _如果分支比较多，用：
0 m4 u- x1 P# M' [& i inspect <expression>6 S. c' ?" F6 N3 s
when <constant_list> then
: A: l2 j; y; ?4 r <statement sequence1>;
/ N, [; e' `/ ^8 C' s3 ~ when <constant_list> then x$ y1 e) r$ P
<statement sequence2>;& d, m$ A0 }6 \
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else
+ G4 U7 X* z. J5 M <statement sequence3>; c9 C2 l& e) A8 ^. e2 y
end; i) V9 D: u4 m9 `
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2循环语句/ H/ n9 F' U5 w% |* p/ D% f
(1) from <statement sequence1>
" F% h% e4 `1 G: i3 r9 P until <condition> loop
; V1 x- R) B7 c( i, Q { L! Y <statement sequence2>;3 U- T: h8 p3 j( B& }/ w0 T4 i
end;) w! K( t$ G" ~# u
(2) while <condition> loop
$ ]7 w. b; T- `1 Z% P% G- O/ Q <statement sequence1>;% h- @6 C# E* e* C8 z2 w
end;. _ B# l* G6 ^
(3) repeat " w s" [& V- E1 J4 n z
<statement sequence1>;7 {( Q/ B: L% C, v" C) B
until <condition>;
2 N5 E- E" @0 b- s! I (4) for <condition> to <condition> loop5 b. i' ?% h5 R( ]
<statement sequence1>;
" W! ~' a/ D9 \7 t \ next;0 l! j1 r; X o' E
3中断语句: h* ~! H( \& r! X' t& D$ l" Z
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
2 V2 q6 b! T3 d* B f+ J- U3 U还有很多，如有需要我把资料发到你邮箱里
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