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发表于 2012-11-13 08:48:12
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1判断语句0 h8 \( S' \ Q: t
if <condition> then
# A y: T& r. v3 M( q2 S5 [5 a: G <statement sequence1>;+ r" Z, q( T* m; e7 \# D- U+ ^/ D
elseif <condition> then
& w, ?2 n" s! G4 c9 R% J+ _ <statement sequence2>;
% \. m& k K1 `! }! a else 3 H/ |0 I. Y" u0 A
<statement sequence3>;
9 Y a5 [# T/ @# W- I U- @0 m* t end;3 u5 R# w% H9 N. g# }3 t9 t
如果分支比较多，用：8 U( s. M% F; Z6 u1 ?; v) c( D
inspect <expression>
0 d# `! g' n" j1 k* J( c9 b* F! V9 p when <constant_list> then
M8 }! ?3 u. o7 e2 p% m5 |( W, }) T <statement sequence1>;
% o% ]( E; j5 n W* ?1 O0 l when <constant_list> then+ [6 F I: E, |7 |. X& Z+ Q
<statement sequence2>;+ q; D) c2 f, Q% U! h4 x2 L* s* H
...
7 s' N9 D- T; N else
% [ B) b4 [4 F# H <statement sequence3>;" k! w7 p% L5 ~2 [. C
end;
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2循环语句/ W/ E+ i0 D8 [8 @, Y$ G1 v2 q
(1) from <statement sequence1>
/ O6 a# M. t: a, g: W9 A% b2 y until <condition> loop
! R6 T" A: l* u <statement sequence2>;
2 k; B0 d' [, n/ h9 D end;
6 C R6 j5 y6 y+ l' Y (2) while <condition> loop
& k' L& o. j: l) f1 ]1 o <statement sequence1>;
: X, q7 m: j; {, }1 [$ l0 {9 x$ N end;- I+ f& Q0 e H1 \, f5 N7 P
(3) repeat
0 Y2 l+ O( P/ l <statement sequence1>;) c3 U8 J3 y" r( n
until <condition>;
! l- a a9 P1 s" e4 t. Y (4) for <condition> to <condition> loop% j7 t1 q5 q% o+ O
<statement sequence1>;. h" v" J- `# J# k
next;/ h7 }' J/ X5 E: h) a
3中断语句; i9 V9 b0 _$ ]9 g' Y! E: K
waituntil <condition> prio <integer expression>;0 b" V0 E9 e3 G, e' \* W; L: ^
# E/ B/ V! W# @8 J
( H6 ^3 j) e3 t7 N$ V6 Z以上为常用的函数！7 W( L3 B' \2 m/ m
还有很多，如有需要我把资料发到你邮箱里 ; }: y) K1 t+ O; m
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