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发表于 2012-11-13 08:48:12
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1判断语句 q, i3 }- O) F+ f2 z
if <condition> then
) Z" v8 |! U8 A' X" ^1 o" X" t <statement sequence1>;
. P# \8 N: u! k! t elseif <condition> then
6 b0 q; U! R6 k5 A0 i <statement sequence2>;" p' x7 E$ a r; v
else
6 v: Z H+ M7 J7 K5 m' X6 v Z <statement sequence3>;+ @5 ~7 D$ e" f6 [7 Y
end;
+ U r/ V' X9 }0 r( T' e如果分支比较多，用：
. X" M. ^3 s2 @2 n3 X: @ \; E inspect <expression>) I i( {! L& g( \( e8 K' N! @$ @
when <constant_list> then5 i( G, o$ C5 z% n3 Q% I4 E
<statement sequence1>;
3 Q2 h$ j: b9 E5 o) P when <constant_list> then4 M, u2 ~7 W7 U
<statement sequence2>;
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else9 [: |" X6 `0 l
<statement sequence3>;
8 V/ u# D( |; e0 j( |- R! b1 g# hend;/ e8 Q7 ~* A, |4 W7 p4 a
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2循环语句. _* C* a1 z; w) k/ h3 p; s
(1) from <statement sequence1>
8 |7 ]% u2 Q; r% S! u' M1 T until <condition> loop
( I1 i) l3 K4 a! n! G <statement sequence2>;& q! I4 w6 D1 i! u& s
end;
+ {0 U' @! a' B: n, Q1 H (2) while <condition> loop" ]5 N; m' F" ]' f
<statement sequence1>;
3 O8 k0 `; y; S; u end;" {8 C! h3 S& P9 Y: X- g
(3) repeat
: m+ g' ]5 H" O <statement sequence1>;0 x, L7 A/ e& ^+ q* t. j$ i& E
until <condition>;8 E/ B7 {) w7 u( p+ a! M4 @
(4) for <condition> to <condition> loop% [# E% k0 n: U3 k
<statement sequence1>;2 d9 {# D2 |! y, r4 g) T; X2 x. } Z
next;
0 m; p0 S0 h& T3中断语句
( S" u9 L6 ]& V. G9 P1 ^ waituntil <condition> prio <integer expression>;7 r' B& E1 L# W- z+ a+ J9 C$ y
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以上为常用的函数！6 o" @$ N" i8 @7 N% b6 @, u
还有很多，如有需要我把资料发到你邮箱里
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