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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
# e3 W) Y h/ \% y( t8 o. A elseif <condition> then
; h; c4 Q b; a2 H" J8 g" p9 [& } <statement sequence2>;; S7 V9 b; q% x! w9 i* U8 k2 l6 F' ~
else - V; X! ~/ p4 `1 x9 W9 M
<statement sequence3>;
% u3 q3 T1 H, }0 u8 K end;
# p& e; w1 ?5 N如果分支比较多，用：
' C( G% V; @7 A- \ inspect <expression>
4 ?, ]5 `" a; Y- E# ~ when <constant_list> then
/ A- l% j8 ~# c& P <statement sequence1>;9 L9 ]7 L+ J [) g4 N# U0 |& X* X
when <constant_list> then
6 p; s7 ^- }5 k; ~+ r1 X' B <statement sequence2>;6 ^2 W7 b8 u( G
...6 V$ K+ k4 @. e1 K( f
else% E# Z+ {6 `9 G
<statement sequence3>;
5 _6 S$ b; |; }end;
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% f% g$ ~* @# @2 k2循环语句! e! W; j! r3 M4 t6 D8 }
(1) from <statement sequence1>
$ u) D" M/ m' v6 d& m until <condition> loop, [9 J! t1 b: D) ]3 z9 C, ^
<statement sequence2>;$ s- {8 w/ G4 R% m
end;
0 E8 @: d3 a3 H8 I1 z F (2) while <condition> loop7 }( E0 J0 {' z. r& M+ D$ X% p
<statement sequence1>;
- `* j1 S, b4 I% X* a end;
/ {) O9 K& h2 e/ F3 R (3) repeat ( V; j& A: e' S/ w! Y6 F! |- E
<statement sequence1>;! V& i0 i/ p# d
until <condition>;
- V% i- l3 p o) F1 Y8 W (4) for <condition> to <condition> loop
6 }6 Z" n& p" H; y$ P D, G& U- j <statement sequence1>;
$ F- Z- p6 D8 r- O& g6 { next;
* K( G/ `" _5 J0 v3中断语句
; r! R5 f2 [; h6 C4 G waituntil <condition> prio <integer expression>;4 R& l- E; i; h, ], a. }# O
7 } A& _' \! ?) [$ h4 A7 T$ r) Q+ q5 v+ L) V( N
以上为常用的函数！
2 f9 y `% U8 y8 o4 H. k. V还有很多，如有需要我把资料发到你邮箱里
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