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发表于 2012-11-13 08:48:12
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1判断语句
- |, x% o' P( A! j2 T+ `, C6 M% e if <condition> then% H- |/ H4 ] t) {7 m
<statement sequence1>;) B. e6 K& U, Y8 J/ K
elseif <condition> then5 V/ o& ^: ]5 l4 N9 i
<statement sequence2>;4 G$ d6 o5 w$ b/ H/ D* D+ T
else . f# {1 ~* S" B- ^' n4 _
<statement sequence3>;+ w! P, k7 T2 D8 c. s9 P
end;
. ^6 }% y, }% z* o, B. {! H) `如果分支比较多，用：
. {6 d( G" }, t2 F1 z9 w+ r5 f, Y inspect <expression>: P! f4 I8 z7 L. y5 W: F
when <constant_list> then5 @' I9 _) T) A0 n
<statement sequence1>;
3 x4 Q; i; H3 O7 i; y when <constant_list> then
4 v0 x) X: x1 G6 R9 y: }4 `& J <statement sequence2>;
# T( q! _; i& |; g" p9 F. i ...
0 c) [+ S/ \ N else
; I+ o9 n) r" s) i9 [: _ <statement sequence3>;
/ |5 |+ h. r- L7 U7 j9 `end;5 G/ A J* o6 c0 z5 I5 H
# I6 X$ k+ q# {; j, ?6 o0 k1 _8 u& K2循环语句- V6 {3 K' J( v9 ?3 `
(1) from <statement sequence1>
. c8 s0 U% G5 X/ F until <condition> loop
* v' u7 W* Z5 C$ J( L <statement sequence2>;
/ w. k2 }1 B; o' h end;
- y" M: [0 p# I! R- j3 l8 I (2) while <condition> loop
! g j& R' H6 f* Q; t! H <statement sequence1>;
- ?# h+ j# R8 x' h end;9 ~% \9 G$ a5 N) m# _, B
(3) repeat
$ w" c9 M& \6 l7 r" _# b <statement sequence1>;2 i9 ]" Y. u: T+ f, p9 R5 j( X- U
until <condition>;$ W+ }" I" ]# H+ w8 h
(4) for <condition> to <condition> loop
/ D$ K: V, g% ]6 A! Q <statement sequence1>;
) O/ x. `# ^- d6 t( P5 i. u4 U next;
6 }/ R- I4 h. G2 y3中断语句, Z% R# O/ v2 V# g3 o P
waituntil <condition> prio <integer expression>;! [1 {# M5 g0 I! E( O# _( P
. {, ?5 B/ X- m8 v, i |
, N4 ]9 ?5 K0 I: H
以上为常用的函数！
6 \/ s2 X2 h3 i4 G y9 k还有很多，如有需要我把资料发到你邮箱里
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