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发表于 2012-11-13 08:48:12
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1判断语句
: G" y4 K0 ?* a D. u if <condition> then s4 r! }) M% \
<statement sequence1>;
, S ]+ z/ d6 e7 y* X2 m1 ? elseif <condition> then8 Y' [/ k9 i3 r1 w
<statement sequence2>;
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<statement sequence3>;9 U* h0 \7 a% U/ i/ N- M
end;: o, }: d( }1 \
如果分支比较多，用：0 o# h/ N- c$ j1 {/ f! q
inspect <expression>8 b' r; o$ `7 N3 F, T
when <constant_list> then) T) \4 m- u" w4 w2 h: w
<statement sequence1>;
( L, A( n4 H. V1 ^7 k when <constant_list> then+ ~- ]" c W. G: X5 i8 i" _
<statement sequence2>;
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else
' ]7 i+ }8 ]" a- h7 s/ H <statement sequence3>;
) S# G3 Z2 A% Z, ?4 U, e. kend;
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f9 A, y. B6 u2循环语句
0 v& | w2 b4 r, L% k1 I/ N! ~ (1) from <statement sequence1>! g Q5 W8 f& S' R: O- l, }
until <condition> loop
1 p6 `! R" `0 G# h- x5 O& n% V <statement sequence2>;- `8 Z! K* n5 K7 x4 G
end;' z, ^5 _8 x N: ~/ v+ U8 _4 M
(2) while <condition> loop) ]: o8 i8 Y/ F5 ~$ Z9 d
<statement sequence1>;/ y) n( L$ e0 \5 i Y6 C
end;. B }3 v3 p& w0 |8 `) m, v
(3) repeat 3 F; q" I; u( v t4 T! P( R
<statement sequence1>;
! q# T) x# B1 u until <condition>;
8 _3 M# ?" M, V7 S' V% w) |0 J (4) for <condition> to <condition> loop
, ~) ]) x) t1 }) u& k <statement sequence1>;
; l8 G3 f- e8 F/ _" [2 H9 ~$ y5 Z next;
) D6 V6 c: S1 z; z; E3中断语句
) I, U B% m; I2 Y. S# ^6 j8 A1 S waituntil <condition> prio <integer expression>;
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i( Q) r) E2 N: n以上为常用的函数！
6 W6 s6 {3 N& \6 O. ^( _. V还有很多，如有需要我把资料发到你邮箱里
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