|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句& R* m) _4 q6 a( d4 ^
if <condition> then
/ |% Z2 l5 a) I3 Y' K9 J <statement sequence1>;
5 S+ ~# [9 ^/ S) {! ^, x2 G elseif <condition> then
7 s u/ J: h1 ]. o <statement sequence2>;
3 C1 m1 _9 l/ z& G- e* P5 W1 X else
7 ?. w3 B1 D$ A, l4 q <statement sequence3>;
4 a' T! h0 f p5 ~3 ?1 v1 X& b end;0 V: x9 M) i# }* m9 b
如果分支比较多，用：3 |$ F- ~' _! ?. _0 ^4 H
inspect <expression># E5 k0 i ~' M$ F
when <constant_list> then1 V9 z8 w# m/ R3 o3 m
<statement sequence1>;' T/ l3 [: h- w8 K
when <constant_list> then
; @- V" g; y/ `) I/ c <statement sequence2>;4 S( i6 }; g8 I9 Y+ f
...
4 z7 w; ~, R8 c) B% f( K else% }: x$ m S/ w$ ?- {5 M& u
<statement sequence3>;# B8 g2 ^* B& d U2 U. W$ y, D% P
end;
R( {' n! D% f7 R+ Y9 Z; a0 U0 h7 x; k d @
2循环语句4 q" `8 ]" N+ p5 w
(1) from <statement sequence1>
: b1 h+ g! o( S7 c. ~; m; V until <condition> loop
1 a/ G, y7 ?, j" m- | <statement sequence2>;5 a: P2 C' a: H# a8 n
end;; v* H) Z. K( r' A
(2) while <condition> loop% d5 o! a8 i. w1 a" S
<statement sequence1>;: u2 r4 D+ e+ ~6 f [0 c3 T1 L5 E/ ^' T
end;
- e: M4 G; D' F% M+ q7 c C (3) repeat
% n1 F- V5 N2 L: I) V2 ?9 X B* W6 O <statement sequence1>;
3 r, l7 V* d6 J: c until <condition>;- r6 H3 p5 p3 Q8 v0 F& A4 s
(4) for <condition> to <condition> loop
: [; r& T" \! E3 Q3 N <statement sequence1>;+ e0 C: z3 j% L0 B/ p( r" q* q: a
next;! ~. Q' b6 A- ^0 T$ W
3中断语句
) [0 M& ?/ P3 J1 y( ~5 ] u9 H waituntil <condition> prio <integer expression>;& ?' _. N, k1 _& K( z! D A
8 d% x( C6 }9 D7 z( v9 |5 V
1 k; \9 M) d6 u# ?! y+ k# q以上为常用的函数！" A! a! a2 c) {* } B' l1 Z* h
还有很多，如有需要我把资料发到你邮箱里
) l0 s4 u8 {: C, b' H0 U; n B' q3 s
: K0 Y1 M: B R, X+ a( L, F" D: f$ ]1 r" {) v$ z3 Z
; I* [* j" d# Y0 X' a/ j; p' ~
/ w# K' n- T, M) [: Z6 j
5 E0 D! c! P$ A
4 @% _0 `' D9 j. H0 \1 O9 c
6 Z& {0 V0 T% u' I5 \0 a
6 z9 g' h' G" H' D' ? * h5 E( r1 F9 s( @) j5 }
|
|
[复制链接]
