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发表于 2012-11-13 08:48:12
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1判断语句5 B8 }8 d& E8 v3 ]
if <condition> then
$ r( u9 \# b r! X2 L <statement sequence1>;( K( o% c6 P6 Z ?* z
elseif <condition> then: s9 _! t/ [# F3 S
<statement sequence2>;6 Q" m$ }: h) ?$ \8 O& Y
else * n2 H% H: k9 B- F/ h8 U" b% X) R
<statement sequence3>;
; u0 q/ ~0 E& H j# t end;
+ I ]: `7 z4 |* f0 M9 V( }如果分支比较多，用：
! W3 d) P4 W8 Q' s, p* X inspect <expression>/ l6 N) [; k+ ]2 L, l
when <constant_list> then' [) W8 x4 c0 o6 U4 F* q' x
<statement sequence1>;7 h, L' ~4 A l, ?/ `" ]
when <constant_list> then$ w& i7 r+ B7 h
<statement sequence2>; y/ P% c. S: U( ?) P( v7 D
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else
2 `; U( y0 e/ K0 q <statement sequence3>;
/ [0 d2 e3 I6 A0 Xend;
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* b( V' {& V% U9 n! p2循环语句9 {$ r: }& c$ W8 j% c" w% r6 `5 i
(1) from <statement sequence1>" r' v" h; g i- ^
until <condition> loop. v7 v% ~1 w' ~* D
<statement sequence2>;
$ R3 A( C8 R* O% S8 C' X r end;( |/ _# H! \8 W: C& D7 K% t( E" O
(2) while <condition> loop- \2 G2 b3 o5 [4 ?, t' {% B E
<statement sequence1>;5 |0 d" o+ y6 F# j! }
end;5 U! |$ l0 {- H* }! i: C4 A
(3) repeat
3 J# k/ v! O# N5 J5 s! _ <statement sequence1>;& C8 a; w( ~6 _1 ^+ v: L$ m
until <condition>;5 _1 j! m$ A8 P, {) I/ x
(4) for <condition> to <condition> loop% A( [- w- I/ s {6 j
<statement sequence1>;% P- ]$ K* k7 k
next;1 c$ B! C! k8 |* c( Q5 N* o' n `$ j
3中断语句
4 k2 K) V, j9 l M6 g waituntil <condition> prio <integer expression>;
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) A; g' P7 D, Z2 @2 u" ^以上为常用的函数！
. x0 Q+ |5 V; t+ {, U& j! G还有很多，如有需要我把资料发到你邮箱里
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