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发表于 2012-11-13 08:48:12
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1判断语句4 E" k# O3 `: d6 g! ?1 J F+ D: u
if <condition> then( P1 G7 J( n# Y
<statement sequence1>;+ _0 R6 g$ P+ T2 k
elseif <condition> then2 Z8 b- [1 d9 J9 K* b& _' g
<statement sequence2>;, ?' r$ h# r2 L; s! ?3 O
else
" r. |+ S, P( ?$ x+ @& F <statement sequence3>;
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如果分支比较多，用：
7 T* Y6 ?$ x' e d( c7 B/ F inspect <expression>2 e. y7 F; D$ |8 i
when <constant_list> then Q& E W) z, S, R9 f" A' ], H
<statement sequence1>;7 {- \8 U9 G! I$ r5 V9 ` A
when <constant_list> then+ U* y% d( l( d; J: P
<statement sequence2>;4 Q" W# o8 @. D0 a
...! Q# O9 W6 S. x5 w! p* N+ S9 q
else
* n) c# y" o; u6 Q6 r4 J <statement sequence3>;
% B- i- U, v; Dend;
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2循环语句- u, W5 _2 r* { D. X
(1) from <statement sequence1>. `( Z1 D: [0 w5 t
until <condition> loop
! A0 s% d4 k, E6 I( P( R9 g) Z <statement sequence2>;: a5 L; V& A4 U! w
end;% |) \9 [( u! |& p
(2) while <condition> loop
* \5 S) i* j# m9 m- Z4 X <statement sequence1>;7 I3 u7 E( S& ?# d8 o& q
end;
4 j" \6 H/ g! d9 y- O (3) repeat , s9 ~& l3 s* B# o4 b/ m8 v( [
<statement sequence1>;8 p, E0 |+ v: I
until <condition>;
* R& R, T- F& v& J$ d8 w, C% c- e (4) for <condition> to <condition> loop2 _/ a, }% L9 T, N
<statement sequence1>;6 Q, ?2 A. b: N) o" y# G
next;
! r! E) C2 O7 c- S1 C0 ^3中断语句; @2 d( c2 }: \2 @$ J4 b* e
waituntil <condition> prio <integer expression>;# `. z: w# V( l0 n$ `
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5 _1 t9 z" w# l以上为常用的函数！: q( Q- B, a" H0 f+ ?, q
还有很多，如有需要我把资料发到你邮箱里
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