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发表于 2012-11-13 08:48:12
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1判断语句& @! |8 t( p" r
if <condition> then
" z4 Y$ e5 S$ j# D <statement sequence1>;; o% Y* R9 \: Y% o4 g- O+ Z, D1 t9 u6 ?
elseif <condition> then
+ l) H# ~) s! u5 r- A <statement sequence2>;
; n4 [" z8 u$ h( G+ U, z else 9 Y( p: n; k& G% h; d! w$ Y
<statement sequence3>;
3 D& m, r I6 ]2 t- S# m end;
2 }* o/ @/ u" J0 a w% }如果分支比较多，用：' J8 o1 U) F1 v$ S
inspect <expression>+ K9 k/ i; e2 m* D9 ]
when <constant_list> then
/ U6 O$ b: s! s' H" g <statement sequence1>;
: ?! E9 c0 X1 [ I when <constant_list> then# j7 @* @) Z+ C7 f; U/ t* G
<statement sequence2>;$ k- G3 T8 z4 I( u6 R8 f
...4 `5 w% x9 p: ]5 }. G8 k2 e& N. }
else. _. x: D" X9 Z& G# M6 R; ]
<statement sequence3>;
) z! m: ?! a, t8 A7 b) |8 r2 T! Dend;+ G9 I) m) L4 p2 L3 K: [
, g8 f; d8 u/ i; T& t5 _2循环语句
& _2 n( ?. N0 @% {8 }1 }" l (1) from <statement sequence1>
3 I+ I1 s$ o2 z! I% q! l" X6 Y until <condition> loop
# F+ X9 D0 Y/ i- A( E. s9 }: O) i <statement sequence2>;. d; `( Z. Q+ X1 Q" F" [9 P2 P
end;" x! f J/ M& z$ |
(2) while <condition> loop# w' N' A x4 G% K [
<statement sequence1>;: x$ ^' B4 [/ `+ j4 @
end;
7 T* `3 i7 k: w a. }, } (3) repeat 1 Y' w6 B. Q, B
<statement sequence1>;3 `/ p5 ~0 u7 H# ?% n
until <condition>;) q$ m; w* h* k4 X) X1 O) l6 O7 n3 d% K
(4) for <condition> to <condition> loop2 x8 h6 ~+ |! l9 y' s# l) q4 ?
<statement sequence1>;$ `. T# r- z: Q/ @) U7 J" K
next;3 r3 } o# T; P7 h( w
3中断语句
+ C+ o. u/ U. K6 u" i+ i waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ ~5 K% V$ o/ e
还有很多，如有需要我把资料发到你邮箱里 6 n; r, |( Q F6 I) D
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