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发表于 2012-11-13 08:48:12
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1判断语句
`0 J8 ~7 m8 M" @; W if <condition> then+ @) M A* e0 o; V" w
<statement sequence1>;
. O0 m0 d4 m$ F- {& y/ ~ elseif <condition> then7 b9 J1 F' w! O' W: }
<statement sequence2>;$ R$ L* [: S- Y, @% S% A
else 6 B S# i( t o" |$ T( U4 E3 Y) L
<statement sequence3>;0 V8 R0 Q0 @+ ^
end;
i% l( o* b- E2 s& }6 P9 c# a如果分支比较多，用：( ^) Y9 R$ \0 H* u' j
inspect <expression>7 w! N9 y7 t% K. [( k' o" D% u; y
when <constant_list> then( i! k+ ~/ V$ j8 x+ M/ c4 L
<statement sequence1>;
8 @! ~. f0 W K9 H when <constant_list> then
5 ]* H O* u3 [ <statement sequence2>;
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else
2 ?. w) }% ?7 r+ b# g3 J <statement sequence3>;. z F7 A. X& q: h
end;" S& ?+ c Y6 j( x/ J4 _& Z
1 T, T2 u) s7 W& K- u$ k$ e9 t Z2循环语句
7 x1 o1 A2 w4 ?( P- J (1) from <statement sequence1>
! K1 \; H& U M; d' { until <condition> loop. Y4 ~6 O1 d1 S) p
<statement sequence2>;" Q7 E, p" U$ o4 ^3 c! X" ^
end;
1 [( R$ I8 j) x v (2) while <condition> loop
' a& @( |/ @: F <statement sequence1>;) ]3 N; B1 A2 ~( G6 K% u" b
end;1 ~# P9 Y: E0 {" Q2 ]
(3) repeat # a2 |+ o# C& H6 ]& _& i i8 W
<statement sequence1>;; X8 P% z+ K0 W
until <condition>;( Z' O5 A) {+ \: Z
(4) for <condition> to <condition> loop
) p @, t+ P1 M4 [5 W0 M, n <statement sequence1>;* H5 X. X5 l# T$ O, r/ F1 R
next;/ O5 f5 L- C6 z6 H% w; A) Z
3中断语句
7 G. _ y: c0 k8 O3 z4 @# h6 \ waituntil <condition> prio <integer expression>;
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: w( q( [: |# `# D4 G以上为常用的函数！0 T( @- t1 C" }* U* I
还有很多，如有需要我把资料发到你邮箱里 7 A! [* q- r4 ]6 b- T; |
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