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发表于 2012-11-13 08:48:12
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1判断语句0 N* ]+ s' u# D p+ x
if <condition> then
" s6 P! j9 G- a2 Z# Q <statement sequence1>;+ h! \3 P& z" n/ C
elseif <condition> then
& ^1 S% C( G$ w; g( g <statement sequence2>;/ @: O" ^) @, G) c
else : f4 r; \1 A; L( B2 f
<statement sequence3>;- _. ~, d% u& x6 c! d$ Q- q
end;
6 e. X& j6 K4 U0 f+ t/ p% J如果分支比较多，用：( D2 [0 N& x) \* ?6 s o Z
inspect <expression>
, ^+ J, o( a, m5 J when <constant_list> then) y* b S- z( m) ~( v
<statement sequence1>;+ ^; K0 u# i6 Q
when <constant_list> then& a8 o% o6 s" L' R R0 H a
<statement sequence2>;0 ~3 H8 f: [- e& X3 \7 C
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else
* o) x% U+ |! b* S1 L <statement sequence3>;5 \! @3 C8 k1 X! m/ J, \
end;+ ~% G6 A {: K3 |6 W4 y; u6 Z
, S" M% q6 {* p- T8 R" F+ x2循环语句+ d0 |" M1 \# t. }# Q- P2 l. Z: J5 |
(1) from <statement sequence1>
6 ~$ O' `1 m6 E& V$ R3 Z5 d0 Z) ~0 _ until <condition> loop
4 @3 \& e& u4 q% M <statement sequence2>;
; z* \$ W" ]3 N7 ] end;
) c5 H) D4 m1 \$ t- \$ t (2) while <condition> loop
/ X2 \; L9 {0 M4 x; M6 n) M <statement sequence1>;# c2 s* [- m( O7 [5 n; j6 G* H$ ?
end;
% U, x" D: E- \8 ^" k5 F (3) repeat
9 @5 P, i$ l) _5 }3 X <statement sequence1>;1 z& E/ E' a' U
until <condition>;& k/ X3 w. S& ]5 }' `3 z- O
(4) for <condition> to <condition> loop
& o/ m, z. C! O$ @/ d <statement sequence1>;2 ? D2 o: E( j3 l( b+ S
next;' z2 T. X, Z1 J- D" Y5 T
3中断语句
/ u. E, Z$ s. p8 C6 A, b waituntil <condition> prio <integer expression>;8 ?; k: x( \! @' Y' g* |" l2 b# K
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$ @& W2 f0 }/ W; k5 {/ e9 ]/ o以上为常用的函数！' n6 |) j4 d0 R
还有很多，如有需要我把资料发到你邮箱里
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