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发表于 2012-11-13 08:48:12
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1判断语句
* Z6 D8 ~1 V5 J$ d, i. r if <condition> then
. a5 r# k- p& p; t# R$ K7 ?' y: Z <statement sequence1>;$ Q% B1 x/ H3 R& q8 I, O& m+ S) I
elseif <condition> then
1 { x6 J5 Z) b& b$ @7 B6 I5 c( ? <statement sequence2>;
3 b% w3 D& w9 e p5 I* x/ r. Z: D# \% n else % @ y* w) g" a/ a, L1 M
<statement sequence3>;4 g6 S! U+ W8 m0 L% r- F2 N
end;2 [5 Z1 q% v+ N$ T$ t* E7 U2 e
如果分支比较多，用：
. {" e$ M" _4 D+ {5 j% e inspect <expression>
5 u& R- Q% [& [7 _; }- z# j when <constant_list> then
; u8 A) x4 J4 n! S" t <statement sequence1>;
+ [, p; g5 |: N4 T when <constant_list> then
. q1 m% H% e( z& u: g <statement sequence2>;: Y1 D( J. F8 Q0 @8 \' B
...6 X2 k! h7 d$ r# e7 x3 P3 {3 u
else
E, N p+ E/ |* t1 b. L& w <statement sequence3>;" q2 P. ?6 Y- ^! ^% n: I
end;8 R- G8 c* u8 W, X3 k/ }7 j/ T( e' b
1 @' g7 F( l* c- ]! l) s& |2循环语句
! V& k; ^2 I4 n6 B6 d* g (1) from <statement sequence1>8 V5 O' x$ k. k% Q% D. B
until <condition> loop; N: E& e0 [8 J8 B
<statement sequence2>;: P8 Z' s% ^8 v
end;7 }# |7 L3 \0 G' Y1 k( ~
(2) while <condition> loop. X$ g9 L$ l s P3 y8 N
<statement sequence1>;' s0 R- g) V( D2 R. ^ ?9 q
end;1 }+ y+ A7 R- a+ ]
(3) repeat j/ u. F- x# C- f2 A4 Y& V& d9 l
<statement sequence1>;8 K& T5 c- d8 [! i' D- w/ h" @
until <condition>;
" A. S* X; [# ]; o (4) for <condition> to <condition> loop9 B' ?+ o7 s. n6 d0 v: j1 s
<statement sequence1>;" @3 Y$ H |$ E
next;
' E0 u K! j) J+ U3中断语句0 {+ R' q2 h( W8 o' E- M
waituntil <condition> prio <integer expression>;9 \2 `+ N8 T& y" J# z
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以上为常用的函数！4 H" T2 B# E+ L/ t- i
还有很多，如有需要我把资料发到你邮箱里 5 Q2 R- s& w7 ^2 O5 X. V
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