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发表于 2012-11-13 08:48:12
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1判断语句
( T- i- d3 v9 V2 _9 V if <condition> then
# H* k \ M2 f( N/ d9 _ <statement sequence1>;, e) C% z1 S+ P% b" i( [. }* w
elseif <condition> then
* G* ]* t/ Z& G% A- { <statement sequence2>;
6 W3 y, H" J7 X! w. S+ I5 f else
, @# ~. {6 v# X5 F& ^: o* w, d <statement sequence3>;
' g6 Y ^/ \# f* d8 S end;: g: Z0 M1 t& G5 n
如果分支比较多，用：
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when <constant_list> then7 P! y1 W$ E. f2 S( K& g; A- m
<statement sequence1>;
9 ?' A6 @* X( K when <constant_list> then' M+ F7 a0 n( w3 S
<statement sequence2>;
! Q; R# @# A F3 a+ y9 u& `2 F3 _$ I ...
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<statement sequence3>;/ a; }$ C1 C# z5 l1 y! m- M
end;3 V+ n1 q- u4 }6 p: |2 Z
K2 d6 a( I! i X; S# _1 w5 H# T2循环语句
* M S$ i: m Q9 l% d- F8 F (1) from <statement sequence1>. T7 w1 _. i- L+ B( D8 z7 H
until <condition> loop
* S$ U. E; [0 r4 v( t2 l <statement sequence2>;
3 s/ Z% a1 R' Y! t* f! x9 I+ ] end;/ `3 L1 A. M! y/ D; y- `4 b
(2) while <condition> loop
/ z8 l/ O. E& y1 J <statement sequence1>;; p7 u0 R5 f* J n+ Z
end;
" Y3 F1 ]3 i- K8 K (3) repeat
5 c6 n4 j- [ K) T3 e) ~ <statement sequence1>;# B& r* g: n& l, `1 S2 ?& {
until <condition>;: D/ ~9 f S' ~2 T3 Y
(4) for <condition> to <condition> loop1 Z' V3 w" p3 `: U1 h0 u
<statement sequence1>;
, l( c1 k7 W, J* s0 y9 `8 P next;& |5 U: x; X( {; w! t$ ^
3中断语句
8 {/ E' o3 s, ~ waituntil <condition> prio <integer expression>;
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6 S& h, s/ L7 m/ s! g$ E: M3 ~
3 y4 q& Q- E6 K" b. o0 ^ Z V以上为常用的函数！" z& C8 M; K5 d# h/ c5 d8 Q7 c0 b
还有很多，如有需要我把资料发到你邮箱里
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