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发表于 2012-11-13 08:48:12
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1判断语句
0 w7 A0 r7 ~, t2 Q/ @6 ~7 |, J4 K if <condition> then
8 I6 O' u" d2 t <statement sequence1>;
' w+ s0 g& m! q8 r elseif <condition> then
6 s! w! D8 n6 E <statement sequence2>;, Y) `+ V7 `* d4 W5 _& S F
else
; e- o* G% X7 y7 N+ z* I" G <statement sequence3>;
- L: o- R3 N3 _' ` end;
4 q. i; @/ p k/ R1 u) ~如果分支比较多，用：
6 I6 U1 N- Z4 d+ ]3 L7 O inspect <expression>
b- `, k0 \- o- R3 W7 T7 g when <constant_list> then
1 V4 w/ [# y( u0 m <statement sequence1>;2 ^* i0 d, p6 w5 M6 @) ]" f8 F
when <constant_list> then6 s$ g. s/ f" o. P" L6 p) o
<statement sequence2>;
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else0 J7 I( ?! M; J1 C
<statement sequence3>;1 D% {! \. L* H1 u6 q9 o
end;
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& U6 z' D( r8 J, T; u2循环语句
& d2 d' T# x8 a! b, l5 N0 J (1) from <statement sequence1>. g( a) l- G2 g& J0 F$ h
until <condition> loop
& Q, g6 |* r4 ~4 E <statement sequence2>;+ K4 X2 c6 K1 M' d" G) R
end;
, V: d4 p7 j, i4 x1 v+ E (2) while <condition> loop. A$ ^' A* Q7 J# ~7 i
<statement sequence1>;5 E0 x3 T1 v( a+ [
end;
* u, E( X. Q; e3 K7 u, g6 u' W (3) repeat
* F; z" J1 K9 V" F3 F4 i5 U <statement sequence1>;
( v3 m! g9 A+ h3 g until <condition>;
& y) T/ `; `8 i. z8 M) R (4) for <condition> to <condition> loop
# H4 z. @( |% ?# a! ` <statement sequence1>;
& B3 e( A A5 Z( U S! z0 D) e1 N0 \) x3 { next;
- s( {8 Q5 M5 z$ K- v3中断语句
4 ~! s$ m4 p$ Z# w r waituntil <condition> prio <integer expression>;8 F6 W4 Q, p& g- E$ h: a
5 |6 r1 W- D) h1 R- [# t9 P
- J6 Y2 Y) [3 F: [3 p# K3 [
以上为常用的函数！9 u4 j% r' Q- g0 n/ a! y/ A( [! f
还有很多，如有需要我把资料发到你邮箱里 ' M$ N4 n8 d6 I+ B6 ~ `& \
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