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发表于 2012-11-13 08:48:12
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1判断语句. t) V( R% l6 A0 Q' f
if <condition> then
3 o' r% O4 U0 c& A <statement sequence1>;
2 t* {5 j7 X7 d( h elseif <condition> then
) r1 I4 a9 ~( l8 ]" u' n" d1 A; ]& W <statement sequence2>;4 z8 F5 m% W/ q2 J6 W6 [% H/ m. m, ]
else
/ }6 W% @" _+ ~$ a" j- O <statement sequence3>;7 }* [2 X7 R, j! s3 P1 O
end;3 c, ?' |6 ~" d! O9 |% {/ T
如果分支比较多，用：- Z. P' |' G$ B9 A9 [! w
inspect <expression>; L8 \" g& n" [3 o
when <constant_list> then
& R" M% e" p: V3 w# U2 j t- M2 M <statement sequence1>;' }# b! U2 K' p4 b' e6 \! ~1 T3 P
when <constant_list> then
& @- r+ e+ T* q4 V; ?9 y <statement sequence2>;
' H$ s8 a3 K; Z, U* _" X ...
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<statement sequence3>;: P5 |, P( ?, Q7 A9 R5 K
end;1 @& }$ p: {4 @) A! k8 q' H) w
) _& X. V6 T, K+ B2循环语句
U# \6 {$ ?1 o1 r4 M (1) from <statement sequence1>; V/ E. X, Z- }$ [( ^3 a8 C) j$ f
until <condition> loop
/ F! {4 q' f: D$ L- U3 A1 J& w+ p* T0 i& o <statement sequence2>;
* r2 [$ s. D* w end;
7 C" V7 d3 S, ~$ t (2) while <condition> loop Q% ?; D6 C+ U8 z2 T" K7 _$ d" \
<statement sequence1>;* A! J5 R: ]6 t* y
end;
) z# q( h& r0 o5 {8 l (3) repeat ; g8 s3 ` l/ p- s2 w1 m7 Z
<statement sequence1>;, @( |( T4 g: n: p
until <condition>;
3 m+ {# A8 j B% a- \& o# ~; ^ (4) for <condition> to <condition> loop2 ~4 _5 Q$ Y* T- X: [5 |
<statement sequence1>;5 g6 n/ U" u, E2 i6 v3 Q; J0 w
next;5 U1 M7 Z) C# s3 N. i
3中断语句) Z5 M' d3 ?+ M, T/ ~
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! ]6 s: n0 z/ k) F! A- [还有很多，如有需要我把资料发到你邮箱里 / j$ L; }1 t+ Q$ }3 n5 L, l
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