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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" p: ?& C% E+ c& | \/ }. R if <condition> then
7 C# X6 q, {5 j <statement sequence1>;
( ^; E( M- @' k p elseif <condition> then: E8 Q2 O1 m8 n5 j9 B3 Y
<statement sequence2>;
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# c0 m! k8 i9 w: I7 q, m! C8 E <statement sequence3>;" l, ~6 b% l% t O, l# A; \% S
end;$ p- {# y/ H8 o# k2 F' }
如果分支比较多，用：
# | f/ l+ ^: ~; h inspect <expression>( q) N4 g: D) ?+ p5 x4 ~
when <constant_list> then7 Q" A1 }9 j, z' @2 X- X' X+ a
<statement sequence1>;9 T6 v9 N, k% i
when <constant_list> then. f, ]/ F* m# Z; |$ x) n8 T2 J
<statement sequence2>;2 |0 R) j! j. T" h: b! N
...
/ t J7 N$ n& ~# C& n/ R/ a0 s: R9 o else
r+ |: `8 D) [9 X! d+ k# M+ t! T <statement sequence3>;
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, h/ ]4 C% o+ m8 p1 }" k2 ]
2循环语句
# A k) F& n8 y7 R8 ~ (1) from <statement sequence1>9 A# I: Q+ x7 j3 y! Y
until <condition> loop" F z8 g, \/ i& U. P
<statement sequence2>;7 T# S, p- D" \) j% S( k8 ^3 O# b
end;9 E0 t5 e" u3 Y) Q6 Z; S: S
(2) while <condition> loop4 F4 G3 f" h4 t+ ?) Z- ]; I
<statement sequence1>;
1 g* v8 T5 w* B# _6 F: c end;3 {$ c( {1 i2 s: J; V1 D
(3) repeat
8 v7 Q1 u# `+ O0 y <statement sequence1>;. L0 T& Z" g: ^; a. ]: ~: j
until <condition>;
2 S: d9 ] ~. I$ ?2 D( b" P9 f* S. J4 { (4) for <condition> to <condition> loop
$ T1 r) O' u& H, q6 ]% `+ _% A <statement sequence1>;* u1 u* ^" N0 @6 I' n3 x
next;& f4 c3 K3 j8 Q1 B# k. |- {7 K
3中断语句
+ w0 R' ]' w& s& O& E% z waituntil <condition> prio <integer expression>;
2 J# i* e/ H0 Z" M; }+ d( [/ M6 f9 a. t% ]6 Z
/ a( s0 Q- K/ T* c2 Q1 I以上为常用的函数！
, U; a% |" w' \ r还有很多，如有需要我把资料发到你邮箱里 + J" D; k, ?, x- U3 [5 V
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