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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
& D8 [+ ?2 j4 n/ y1 _3 ` if <condition> then2 u/ N% e5 R" X7 k0 u R
<statement sequence1>;
3 q$ h4 c/ G# ]1 I3 t elseif <condition> then" b- u0 |+ O4 _1 {' w7 t: {- `4 }
<statement sequence2>;- R/ D7 s% B5 \
else * Q1 t* A- q- }
<statement sequence3>;
0 m9 y1 G1 e: l. y! _- l) g end;/ `; w' A: F2 h3 ]8 M! |
如果分支比较多，用：$ A5 {" Q5 N0 w9 A* Y3 \, Y+ Q v' |
inspect <expression>3 w, j) V) H' y! j- o
when <constant_list> then3 |# w2 n0 Y- W; Q5 B5 X( j
<statement sequence1>;) C/ V0 X6 |% M! ~" p
when <constant_list> then; R/ T) B1 D+ V w
<statement sequence2>;
; p% O7 U' E* z' d ...
3 q7 Y& ]; z$ R" d else
7 I9 T- h0 z5 @9 A4 C) l; P! v <statement sequence3>;- V6 N$ k0 C9 M1 X- p
end;
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2循环语句
8 a+ m* d& E$ }( u2 A* p4 V' C (1) from <statement sequence1>
: Y; E3 T F( a9 l( f: } until <condition> loop5 z+ O: y* g: E8 j: ]
<statement sequence2>;
|; T; b: b& q5 _/ ^ end;
9 j8 [& l$ o( u+ g$ n$ j( z (2) while <condition> loop
: ?% h/ m5 W. e <statement sequence1>;( P; {6 u+ s* w. X {
end;( g* a8 W9 W( O8 J
(3) repeat # {: I) a: }' H, t
<statement sequence1>;5 a2 T% n/ J/ N; ], H1 g! r
until <condition>;$ S; l/ e* |% ~' [1 E' \
(4) for <condition> to <condition> loop: E6 T0 {# e' g5 ]8 r" l, [ |3 R! G5 V
<statement sequence1>;3 [/ F" `1 G6 N" F
next;2 i/ y! Y: M/ D+ f* f6 h
3中断语句- x" [; c, o' l% g
waituntil <condition> prio <integer expression>;. [- N; l2 {) y3 b
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0 ^" V1 C( N2 @ w' `9 j2 G以上为常用的函数！/ z$ P. E/ E0 e6 K7 k
还有很多，如有需要我把资料发到你邮箱里 1 B0 y9 i+ d1 L& V$ Q
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