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发表于 2012-11-13 08:48:12
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1判断语句( J$ g0 \: L& z8 n+ i- W
if <condition> then
- G7 [$ `: r9 X6 j <statement sequence1>; H( _, S2 Y h( ?- i& g
elseif <condition> then
4 y# }- |7 x; y- B/ E4 ` <statement sequence2>;, d8 J% g9 w$ Z; _( v6 h; S7 |
else
2 K& Q- F! k2 F7 `0 g: K <statement sequence3>;% p: V' r3 T9 K. Z2 O- M
end;- \0 y, \) y* c! z! @% u$ v
如果分支比较多，用：
3 J) Z* C! ?+ M* ~: M inspect <expression>0 N8 B! p* H7 a' q( q5 |# \9 s
when <constant_list> then
% b6 J* d* o5 Y# I% a2 a <statement sequence1>;6 g& L" |4 V* K1 _8 C4 P
when <constant_list> then; i. R$ y* a: I- s5 N& c& I, @: u
<statement sequence2>;/ k" t% Z# Z/ g5 Q/ J. {7 ?) M
..., \) w9 Z. O+ S X- R+ Z! |
else* |. t5 B; m f6 x3 @6 E. X& C
<statement sequence3>;: W( `4 T' O* } C2 q0 N; S! a
end;9 P7 U# q+ D1 Z" ^7 [1 a
: e! x: |) Y; C1 @: Z2循环语句
6 U* U$ ~4 |! U4 N (1) from <statement sequence1>+ j0 n2 }+ {- b0 ~
until <condition> loop: K0 i3 T& o* U0 s: S. t
<statement sequence2>;
) O% y- [4 V- S8 h. F# d% R end;" y0 r4 {7 Z( A& V5 G, e% w
(2) while <condition> loop
* F. g9 y# D3 J( M. h <statement sequence1>;
9 [$ T; m8 L f' G9 L2 [+ i end;
; y V# H/ z: F% d! M; C0 I2 y4 I6 R (3) repeat % {' Z1 W( Q- A |: d' j; B$ ?0 C4 ]9 |
<statement sequence1>;, O- x" x( o u G' l, M5 T
until <condition>;; m' z; i8 ^; t/ k |8 \
(4) for <condition> to <condition> loop
( w( r& w( a+ Q% k <statement sequence1>;
: D, s$ O( P% F1 M" q, l' s' } next;6 I7 _: B4 {2 Q# s
3中断语句5 Y3 i" x( T, z! I$ R
waituntil <condition> prio <integer expression>;
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以上为常用的函数！! \, J) O: h" t ^5 e- T. Z) k" _/ z
还有很多，如有需要我把资料发到你邮箱里
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