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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
! }9 @# ?: _! u! H f/ p if <condition> then5 U5 t8 `5 X- }
<statement sequence1>;; ?+ O# O J2 ?) O
elseif <condition> then( w8 L; s. i$ f
<statement sequence2>;
6 j" R: k" \9 L$ h else " L* m+ @4 O$ l5 M2 K
<statement sequence3>;
" T# f4 g5 d% @, j, j6 @: Z end;
. c# x) _4 b' G6 {$ T1 r1 |4 e如果分支比较多，用：; }; g' Z2 G& R3 z: P0 d' H6 W! h% J
inspect <expression>0 S! v. ?9 m! ^9 I. M7 G! B( u
when <constant_list> then- L) w- S% ]3 y7 ^: Y# s: L
<statement sequence1>;. A7 o1 n7 l/ w( k/ n! o5 N
when <constant_list> then% J1 X& L, j) R3 ]" M* Y+ h
<statement sequence2>;8 j! [/ z' Q9 M" I7 u
...
, `) k% e% r/ M( u; I4 m else
% o0 i& Q9 M, |, s# q- l2 | <statement sequence3>;5 F* A, {+ `8 Y: _4 r0 y u/ \
end;) P9 H( N# B* a$ ^' k6 L) W
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2循环语句
, R5 v3 u' q8 v) [3 z (1) from <statement sequence1>6 G4 \" g' `6 F( K
until <condition> loop
( z2 I: ~% O( e6 ^/ Y x0 S <statement sequence2>;
& ?% Z9 L0 O2 E( e: d5 n6 e5 \( X1 B end;
6 s6 a" x$ f) D! N& M (2) while <condition> loop6 E2 t* @8 G, V2 C6 Z+ E
<statement sequence1>;, j# V! x0 f& S
end;: R* h4 C( m8 y% ]* q8 |
(3) repeat
1 I1 M! w; {0 _5 b: p <statement sequence1>;, Q# D" h& I S6 f* o7 n! C& N
until <condition>;
+ H' ^! [- E& O* F! V# s (4) for <condition> to <condition> loop
( A! }" I# W# m" v0 g <statement sequence1>;
! c& S+ }" ?) h4 G, Z9 T6 F# N0 a next;
: I/ l* }/ f# q2 p3中断语句4 T `" C& D) j9 ^' D6 N m/ z& g
waituntil <condition> prio <integer expression>;2 e& h: B: Z" G
$ n. {# ~3 d. Z1 v: Q$ d
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以上为常用的函数！
4 l4 f+ M/ P4 e" |还有很多，如有需要我把资料发到你邮箱里 ( I2 |5 R5 I. M2 M1 B6 o* B: [6 B, d
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