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发表于 2012-11-13 08:48:12
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1判断语句
" D* |( k! }6 J& }. ] if <condition> then& \$ @! X) |5 s5 D* D/ w
<statement sequence1>;# |. S& ?9 s5 Q, m
elseif <condition> then8 O3 F9 d6 d3 c9 S7 E
<statement sequence2>;$ u0 e* x2 }% a ^4 t
else 3 [5 r {' H* _$ M1 Y9 x. z) @
<statement sequence3>;! o' P# I& \ x7 s4 s- S% ?
end;7 z; p% r% q1 T- G* o
如果分支比较多，用：2 I' x: i$ f( y/ u3 B
inspect <expression>$ U$ G8 x7 H3 c5 e
when <constant_list> then; b3 y: Y$ f$ H8 ?% b" l+ C
<statement sequence1>;
$ C; Z# j4 @+ |, M when <constant_list> then# _- o: |* v( q* t4 z. {) _' n1 M% d
<statement sequence2>;. c, q3 [! q/ c, E, O: y2 }7 O
...; D+ U" ]4 Y( @% v
else
8 S( S: i* |5 J <statement sequence3>;
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/ D2 ~2 K( O+ g8 t- R2循环语句
8 f8 s1 t0 L& H" h% ]1 r (1) from <statement sequence1>
& G4 Q& w. A5 n; n/ l8 W5 k until <condition> loop5 ` K/ R) [$ Z! {3 i q
<statement sequence2>;
; G6 d2 ^2 u8 U1 a: Q( b. r0 V end;
: H/ g- q# g& k ~ (2) while <condition> loop
# X( O& T. i8 H0 W" v/ Y, X8 r <statement sequence1>;
* n" \$ J) \! m; p' Y end;6 m$ R+ ~; ~- j, p
(3) repeat - P& {, z# k' K% g0 m
<statement sequence1>;; Y& T0 A3 u. G3 h7 i
until <condition>;
. O$ o9 D. F2 s+ Y" J$ I( j (4) for <condition> to <condition> loop" f3 S8 a* G* p, n$ W
<statement sequence1>;
0 E( a% r7 X ?! N+ J4 c$ k! N next;9 x, n& T) l7 V) ^3 O( C5 K
3中断语句/ Y6 \6 h6 l1 o' K( Y+ ]7 P
waituntil <condition> prio <integer expression>;$ W! M, `, K4 v% v1 C0 z! Y( e
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, U; s. w# S$ U" a以上为常用的函数！% u! n3 c) ^. }' `
还有很多，如有需要我把资料发到你邮箱里 / y4 b" H$ a# u" z( x6 M
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