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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
# e. ^$ ?' g; |: M9 W" w5 t if <condition> then) j) k8 v! z+ \2 K! C) ^' C( G, @
<statement sequence1>;1 y$ X0 J$ J- t+ C+ B- \! h
elseif <condition> then5 o# R# }5 x. l$ K. i4 j5 ^
<statement sequence2>;+ y/ M7 O7 l; Y, Q' C- k+ L" L
else
. f+ A% }' W; w) h2 g2 a2 I* p <statement sequence3>;
' X. s4 J X- B9 m. [ d end;
: O$ y. c. R3 B* j V如果分支比较多，用：
2 g& J; }8 i4 A% `4 g inspect <expression>' m8 |& Z1 w' y8 T
when <constant_list> then* [' x$ h6 _ s5 T4 ~' a0 z8 } a
<statement sequence1>;, Q* V7 W% v8 L. v5 i0 a
when <constant_list> then
. z' ?: o9 s) ?( B( U5 T6 B f <statement sequence2>;
" O# ?+ _5 R6 G" g ...
7 F' ^( P4 N6 L) X( H" `8 S, M else
+ k4 ^* ]" i! T4 w. I <statement sequence3>;
. Q' C% s/ f9 y3 |" u( eend;! s, ^7 r" l$ g* X3 P
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2循环语句
& e; i! y: N/ K1 N0 p (1) from <statement sequence1>( [; q# x; G( c3 }' \/ @
until <condition> loop
2 J; W" [% `$ X6 A- J <statement sequence2>;/ O; x5 V# J7 Y5 R2 v
end;% @7 q4 L9 m8 f( C7 z
(2) while <condition> loop
& N4 Y8 q% N6 ^& }4 w. p <statement sequence1>;" L2 D: ~) Q: a5 c2 @# |
end;
3 U, R" H" f/ m/ c4 r% B9 v: k (3) repeat & B9 B% y2 h0 T
<statement sequence1>;
( V- t' r, T, u until <condition>;
, ?2 r1 S5 k8 Q5 i1 T (4) for <condition> to <condition> loop
* T1 E1 a, g7 a- h G% D <statement sequence1>;0 G4 A6 a- j% \1 a* o- G
next;/ R4 B0 ?7 C7 C1 K6 y- Q
3中断语句: Z3 } L. F% a' i, l# j* r6 l h
waituntil <condition> prio <integer expression>;* C* s4 G/ k0 l$ M
1 M2 R- I( u7 F& f2 v* R( q0 s) w
6 j5 n c4 L; p/ m以上为常用的函数！
# ?8 U+ |1 |+ i5 a. T还有很多，如有需要我把资料发到你邮箱里 - l2 B; a" K: Q5 q C `
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