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发表于 2012-11-13 08:48:12
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1判断语句- V, m u+ Y. W& q. x, r
if <condition> then
# v- P+ h+ A, i <statement sequence1>;
+ s1 ~+ ~; o9 M4 h! W) q elseif <condition> then
C6 f3 }) Q5 k2 M9 Z( I, e <statement sequence2>;
0 C: u. G: ?! I5 l3 P else ; M8 d9 ^" t9 j% q1 f' D' A, L
<statement sequence3>;
# G' X- E) A! v5 g% m end;& }. ~: F& K4 Z5 E
如果分支比较多，用：
: F! [, g: f2 R% ~% o inspect <expression>
1 h$ L W) V7 T& L0 L when <constant_list> then' N# F, S6 I2 r' M4 p
<statement sequence1>;) y3 X0 m, d4 D o
when <constant_list> then4 b& q5 D& l5 J3 L! {. G
<statement sequence2>;, w% ?+ A! E$ y" s3 F) l" F
...
/ ]6 p, J/ ]) K( | H6 U- ` else V6 c3 L# S9 F; g. c8 W0 z
<statement sequence3>;
% R2 |! W# {% r& a/ X1 ^4 _end;9 U T, ?/ v& [: X
( \# P* I8 L0 y6 a2循环语句
0 {; @% j7 F3 T9 Q1 O! Z5 P. f2 y (1) from <statement sequence1>
7 {0 g8 c" e1 r) m7 i s$ G until <condition> loop7 n- e% L; [( d/ t0 ~6 D
<statement sequence2>;' z. |* ~- c% k& P
end;
' i8 j0 E% o) O5 _7 Q0 V (2) while <condition> loop
+ o4 e* B8 X% c; t, s! L) C <statement sequence1>;
- F6 W' i) i" \3 j" Q# V B4 a end;* W t# c2 h+ g. w& D. u, ~1 \
(3) repeat
U0 N0 Z2 L) j% n Y <statement sequence1>;1 I U4 |3 @: m( L/ b G
until <condition>;
" A9 K9 U: a/ r5 W& |1 _ (4) for <condition> to <condition> loop2 s+ ]* ~$ E/ X* w; |- u/ h
<statement sequence1>;. i* k; [( n; _( H
next;! n1 ?, m$ R& }6 f/ w
3中断语句0 Z8 \ z6 p7 m% y! U! A
waituntil <condition> prio <integer expression>;
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9 ?9 a5 W) f6 ]% v/ \" Y以上为常用的函数！, C; T9 j, g6 Z- L4 N" s, w" B
还有很多，如有需要我把资料发到你邮箱里 * R8 b- B7 [: c1 c
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