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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
8 N7 ^5 n4 @7 c( T- I9 a& _ if <condition> then
% n; S8 c! k1 h1 y- O; d <statement sequence1>;( E6 C7 I9 O$ @2 m
elseif <condition> then
4 q1 H1 ~* X" }; t4 J9 w6 _1 M6 ` <statement sequence2>;1 Q& ~5 o' v* i$ k. K
else
q0 Z4 `7 A' N+ E <statement sequence3>;
H4 J" k2 [, J end;
$ S' x6 {+ _* ]5 R如果分支比较多，用：
h/ A. @5 o. a! s2 A inspect <expression>
6 O( X, Y9 e! g) ~ g when <constant_list> then
! f# _4 r7 [7 Z <statement sequence1>;6 g; {. M4 I* ]$ J% |/ U7 b
when <constant_list> then Y# x- V* ^+ L
<statement sequence2>;
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else
( G. ~* Z. O# {/ h7 }" z <statement sequence3>;# P5 N0 X9 O0 x4 O: d4 {
end;
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2循环语句
/ M: r O6 K" `2 s' p9 \ (1) from <statement sequence1>& W, T! C; ?& g; V* ^2 C2 x- a
until <condition> loop/ o2 b( Y/ T' d. x* m& S; H
<statement sequence2>;0 A( y1 b* u: ?, l
end;5 J4 ^/ t- \7 g, s4 n$ f' I
(2) while <condition> loop5 S$ F' B6 h: u5 S7 `6 J
<statement sequence1>;+ B4 y4 V1 Z* q; A
end;; a2 ~9 T, v/ e+ [( H% E" G
(3) repeat
: i) `4 i! g8 G. `7 Q# ~ <statement sequence1>;+ [9 S5 [" D% c+ s7 n
until <condition>;5 M, N7 X' m* V2 E9 D
(4) for <condition> to <condition> loop$ G$ {! j# S5 w/ e" _; U
<statement sequence1>;
1 F, @: |! J9 C0 u next;' O. A$ @) f5 F
3中断语句3 _$ t! i6 f4 m0 j
waituntil <condition> prio <integer expression>;, V+ {( H6 k# u, L
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+ G4 x" Z% c0 B/ z& d以上为常用的函数！
( e7 q/ }& d" Q还有很多，如有需要我把资料发到你邮箱里
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