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发表于 2012-11-13 08:48:12
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1判断语句
6 T) b1 C" J+ {$ @2 P! O3 c if <condition> then
I+ ^' T% y9 R# Z; y; h, t <statement sequence1>;
! `( ~1 i& s8 H( b2 R elseif <condition> then
9 ?! R' F& q3 f6 u; V) e/ B# B) D <statement sequence2>;
4 o1 ?1 |" D7 [1 d else
R* [* B) M3 d <statement sequence3>;9 `! Z" k. h* P
end;# u, D+ P3 K) ]+ _% y+ s- e
如果分支比较多，用：1 k6 s% c+ h/ q' `, o1 |8 U
inspect <expression>: C, m$ b# g$ O/ J8 |) f& }
when <constant_list> then9 n* k2 X0 }5 o/ E
<statement sequence1>;3 F* D& V8 P* i5 m9 `; T6 x
when <constant_list> then1 i0 q' W, r0 N0 w/ C5 @, Z5 A
<statement sequence2>;1 |* J' b/ P0 s- |( u4 H
...
- t, Z9 x6 |6 m6 j. S else
" n' j* E O) `- H <statement sequence3>;
6 k/ V- i! r5 `! H ~end;/ B/ L; \2 M/ n1 }0 w9 U
* q+ ?) A. |" r9 ^2循环语句, x+ u o$ ~' v2 ]% d. h
(1) from <statement sequence1>
( L( {5 V' `8 u5 V7 } until <condition> loop) t0 ^( w9 Q/ p* q3 J1 |
<statement sequence2>;1 c( p! k4 H% B2 G/ m$ F% t
end;2 N b" e! U7 q" M* ?
(2) while <condition> loop& y0 u- Z+ a! E, Q" {3 n% c. u
<statement sequence1>;- b+ c# R5 M5 z- \- }
end;, y/ B1 ?$ J( ?, Y1 S' G
(3) repeat
6 f0 m" u( B1 k- F' l5 W, b$ Z <statement sequence1>;
# Z3 N7 a) Z* j( `3 K7 U until <condition>;6 B6 z r, ~' `2 r6 f
(4) for <condition> to <condition> loop
4 B8 L! k2 K6 u <statement sequence1>;3 z0 x; J8 f3 Y' O
next;% g. a' {5 t1 Z# ~6 ^# D9 o, J
3中断语句4 W* E0 g8 q5 _3 @) z
waituntil <condition> prio <integer expression>;
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6 j8 H* p8 F1 @; @/ X6 z
以上为常用的函数！
, C- I* k4 S2 u% o% c0 P还有很多，如有需要我把资料发到你邮箱里 % ~9 R) k2 p- x" l$ i) b
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