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发表于 2012-11-13 08:48:12
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1判断语句+ w! A3 Y* b6 v
if <condition> then
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elseif <condition> then& e7 \, q7 U* }2 [: X
<statement sequence2>;
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<statement sequence3>;
- ]) M" `4 @. D4 D) [$ _ end;
" Y" u) a* j* _+ ^' q如果分支比较多，用：1 F; Z' S( i" D3 D6 E3 h: g% b
inspect <expression>
9 |* W( ~* u% ^ when <constant_list> then( P0 _. \1 t. @; c9 t, i# O7 W S
<statement sequence1>;
9 \& z5 ]. X" Y% R1 C5 l when <constant_list> then" k: A% S- L4 N+ P% p2 E: {, d
<statement sequence2>;
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else* z" S# ^0 j7 L: y2 q, r% r
<statement sequence3>;
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' z- d7 `) q/ E% f2循环语句
! j! D3 W) \9 [4 w& `/ \ (1) from <statement sequence1>
+ S9 ]% F4 }8 V/ t until <condition> loop
! Q& s& x$ Z2 R6 ?) U% F <statement sequence2>;
: F( b, S ^6 l! r, T0 \- ^- ^/ x end;
1 b' T9 M/ \& ?1 U: z (2) while <condition> loop8 j3 a7 U. e4 ~5 d
<statement sequence1>;
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(3) repeat
# ^9 R' E3 [' e* g( q' W <statement sequence1>;, H% h! X% s0 W$ b) `$ j; o P. G
until <condition>;' M+ h, r* G: k3 m9 _6 w5 u
(4) for <condition> to <condition> loop
+ U7 ]+ ]# D5 o! O! m- X <statement sequence1>;1 u% q. ]2 Z* w# c# }1 K. ]
next;+ K2 [8 R }& S/ {+ Y5 }: ~
3中断语句* }* m' S' ~+ B; f. C% j& R7 j$ z
waituntil <condition> prio <integer expression>;
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( u% n" S/ X% G, A7 u* }$ o以上为常用的函数！) ~' @1 G/ q# H r& c n2 D% ?& c
还有很多，如有需要我把资料发到你邮箱里 $ K' x/ R. e& ]7 _. g+ u
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