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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
- R3 |; l" L) `( h if <condition> then
. L, X3 e5 v B. A" e X. v <statement sequence1>;: b! J9 b# O, n/ n% U0 d
elseif <condition> then+ Z8 t' s# {, \) E
<statement sequence2>;& Z% }1 N: j$ Q7 N
else 0 T D( A' b7 z2 k* u
<statement sequence3>;% m( u! y$ Z. F9 C, e
end;6 c$ E4 c1 S6 U. o. a
如果分支比较多，用：
" |/ h `6 S+ m( \- T inspect <expression>7 Z: J+ w% Y# F9 Z. R: K6 d& }
when <constant_list> then
- x' @0 F, `" X; Q8 Z <statement sequence1>;3 _. \8 z/ g# D) E! I
when <constant_list> then
9 p% k2 \ z6 B2 Q1 Y/ A% t2 o; X <statement sequence2>;# x5 o! F; H, p3 v% s
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else
; h' Y* V5 R% {0 p9 x9 G <statement sequence3>;
: @: Y# C* {& uend;
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, @7 s7 l. L/ t( ] \2 s2循环语句
3 ^1 E1 S( C5 {5 b* b (1) from <statement sequence1>
t4 ]. r* c1 F until <condition> loop' ?3 k2 x2 [+ J2 v
<statement sequence2>;
; D6 a$ ]# c4 L( Y; l- D end;( y( U. C8 p" X1 ~4 M0 W4 \2 O
(2) while <condition> loop8 Z' a& G( x+ K% [2 J8 b1 ]
<statement sequence1>;
5 w/ `8 a' v& q1 R( n end; o- p1 I/ D3 _/ _8 A) x
(3) repeat
7 @. |6 Z1 x; @ <statement sequence1>;
8 S J: ]7 k4 |. Y$ a5 H2 f h until <condition>;
" n$ ^' r" r. F5 F1 f (4) for <condition> to <condition> loop) H7 n0 E, L5 b( [, t9 H" u
<statement sequence1>;
5 ~' V- K7 J- m6 \3 C+ E next;" y6 p: i0 w5 Z( e6 `; X$ @ |) f
3中断语句
: Y8 q2 D; J# b, Y( |, i; e" T9 r waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 a7 ^3 `4 L3 R* ]* z$ R还有很多，如有需要我把资料发到你邮箱里 1 S' h/ C( ^( E8 j7 G0 X4 U% }
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