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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
H ?8 r: P' C6 [' f% D3 t if <condition> then- x5 z" S+ x. W3 r% O3 H) N
<statement sequence1>;
; A8 z( o1 [1 z4 p ?/ M elseif <condition> then- S( \3 z z. D4 b! K! A1 D0 `
<statement sequence2>; }, ^" y$ J# W" c3 b5 V
else 5 t, r) i+ Q- _ I. o, \; u
<statement sequence3>;. ^8 E% [+ i3 N1 l
end;
2 u, Y4 n3 K9 I! E如果分支比较多，用：
& s+ `9 l m7 o/ |0 P inspect <expression>$ {# s$ n# F, c& h
when <constant_list> then
' ^4 G2 r' U, J3 Z: o( P <statement sequence1>;
6 D4 \% V9 e) F when <constant_list> then
/ p2 @; k7 Q, B. l9 b <statement sequence2>;* h. E1 p8 j7 ^ R* S. M, I
...
+ F4 S8 q( i% B9 S else
9 N- Q2 @" ?/ o0 m5 c <statement sequence3>;# ^9 ^# L8 s b' x* ]
end;
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2循环语句
2 a9 C, k* W3 I4 z t6 j+ Z, i( q (1) from <statement sequence1>
3 \% @+ e5 n" @" `) r2 { until <condition> loop
2 @& s* D9 Y( O <statement sequence2>;
# e4 A# Y* u6 z9 n' u2 ` end;
; Y, B3 v3 ]/ q( j9 B* _) W (2) while <condition> loop
8 W8 \, Z5 n* B0 H" k, O' D9 A <statement sequence1>;) h3 l# g9 U) w& X U
end;
. V9 `- |: ]7 R1 [ (3) repeat ( o" q% K) x X0 f
<statement sequence1>;# p: ?! _& k8 M) j! w* [* c
until <condition>;4 S7 d; P! y9 u1 K4 w7 b' A4 j
(4) for <condition> to <condition> loop
, Y; I. {9 }, J <statement sequence1>;
) k" k/ O! {$ ^ next;
2 O1 v7 |( R, k% S I& i8 p" j3中断语句
9 h1 i s- b: g% y- ?+ O3 E waituntil <condition> prio <integer expression>;
o, Y, i d& B+ s9 h
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以上为常用的函数！
: A- l! B+ p, b8 o# R* H还有很多，如有需要我把资料发到你邮箱里
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