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发表于 2012-11-13 08:48:12
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1判断语句
7 w. z: Q/ `0 y) K if <condition> then
}( H4 E4 _+ ^$ G( v4 ~ <statement sequence1>;6 p& w9 v: ?& i- i9 b
elseif <condition> then
) |, `- n) j7 W" r6 ? <statement sequence2>;
$ [$ n, N4 \" T) o B8 @& V* f else & s: b1 o0 a% w* c: a
<statement sequence3>;
4 C! m+ G% V1 V; o( _, G end;
7 P8 r6 G' K0 Q6 Y( ~( a2 A# Z: e如果分支比较多，用：: S$ y* W' H" H" s* C# T ]% @: \7 ?
inspect <expression>
1 ?1 X5 @6 I9 C' h! l when <constant_list> then( o" f2 E8 m1 L
<statement sequence1>;
$ x& `0 j: }2 E& g: K when <constant_list> then
5 t( N4 h. D# `9 |7 a7 F <statement sequence2>;
" M0 w8 Y3 t( u& X ...
$ f+ l; Q& g; m' R) \; M else! a# c4 S/ ?: x+ w
<statement sequence3>;/ q4 `4 n& L/ _3 [) \# t
end;, Z8 O. U& E2 m/ I* O& h, k& f
. v1 ^& m9 i- D8 ^* _2循环语句: w7 x. q& r) b. N3 p' r7 w& v H
(1) from <statement sequence1>
6 I7 e" ]0 c+ |4 z9 ^, H/ c until <condition> loop B! A% c/ ]7 E5 z) }$ W
<statement sequence2>;
, Z5 l6 l% E9 U4 f$ l end;
! @4 q- x: M" X& Q _5 L (2) while <condition> loop
* [! G6 x0 {/ q, {! a <statement sequence1>;, U& K: x% k) ]% O3 i4 `! C& a4 N
end;' g: t. k1 K6 @
(3) repeat / u" g# V# M! P2 c
<statement sequence1>;- `' n: ] C) X+ a
until <condition>;
1 V0 S4 `/ Q3 l0 c) j( } (4) for <condition> to <condition> loop
" ~6 Y3 Q" X, T <statement sequence1>;
9 H+ } F2 b6 W b; K- d next;" H m: L g; e
3中断语句
: e1 I% d5 M, Q6 |5 e waituntil <condition> prio <integer expression>;0 z" i$ S: J( w( m
* \* Y. V" l8 `" M2 z6 I6 u O' X& b# C2 X% f% r% X4 Q
以上为常用的函数！
* M2 i; q! O" G5 d% K& I还有很多，如有需要我把资料发到你邮箱里 ! a" \3 y2 Y* Q& O6 }' i w
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