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发表于 2012-11-13 08:48:12
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1判断语句2 S7 t1 t- F1 D P" b6 ?8 S
if <condition> then/ A, h* q% C( s; g- i
<statement sequence1>;$ ^4 T! {% m, o3 Z' p
elseif <condition> then
( ]1 s$ m6 {2 X <statement sequence2>;
* s0 E9 `; k% K, ]8 Y else
3 g. k9 q4 |: i <statement sequence3>;, S, y' X ]3 A3 s) L5 s7 a8 f. x6 E* t
end;1 c# L9 t1 W; x4 T5 Y* r( G/ u x
如果分支比较多，用：
# y) R( [7 H8 K8 K9 M. T inspect <expression>
5 H8 V3 m6 }2 {7 m) K, c4 y( b when <constant_list> then, `9 R6 J, K; t V3 w- H& R
<statement sequence1>;
& M7 P* w" _$ h7 X1 ~( B( q; a when <constant_list> then j+ K" T o) {7 w
<statement sequence2>;
/ H# `% ^0 S6 c' s! U3 f ...
8 x+ p3 T1 s9 n! X* r3 H9 [ else
- G2 Y! b/ A# v [8 S <statement sequence3>;8 {0 D% R- _% H. W$ b4 A5 p
end;
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. g3 C: M( Y; u% [* H. U' t2循环语句
5 s/ P' J% C8 z) u# _$ ?; H (1) from <statement sequence1>
; l" S9 P& u$ u8 G5 ] until <condition> loop+ S5 p& h6 k1 ^! Q. j
<statement sequence2>;
& F6 `# ]+ ~3 {& o, Y- u& a4 F end;
2 \0 P) p" w4 l (2) while <condition> loop
8 z& i. ^+ M1 f9 `, Y- k3 @ <statement sequence1>;
$ r+ X- o3 _4 I! e3 n$ ?' m; c end;
k3 S0 h! r# d! \6 G (3) repeat 4 _: \- v/ k5 ?0 h) q3 p# H
<statement sequence1>;9 z$ u! c% q9 v+ U
until <condition>;) h$ D( ]7 r) A( F8 \
(4) for <condition> to <condition> loop9 w1 B2 b. w) j
<statement sequence1>;
* J3 k# ?, ~+ g: { next;2 K8 u* H& T# Z
3中断语句
& \" @4 j$ W* d! T( ` waituntil <condition> prio <integer expression>;- y0 R! ^( O; q$ A' c
* s: }* c$ {9 O3 o$ @
; ?7 O+ }- o6 a9 v& n以上为常用的函数！
2 }, ~- t7 O1 i7 z0 H还有很多，如有需要我把资料发到你邮箱里
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