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发表于 2012-11-13 08:48:12
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1判断语句, i6 T; f" T* l9 B
if <condition> then. z2 V( E& c$ [; c
<statement sequence1>;
8 `+ n9 o5 v9 y3 b8 i' B elseif <condition> then }0 n2 r# v9 B2 D" J5 j
<statement sequence2>;
, A4 f+ h' l' @$ F2 ?4 B6 n/ _ else
3 [( |: l: J; J5 @! _) n p <statement sequence3>;
( H2 @' E1 y3 m7 T end;
E) q! S* o6 Y1 H, ^如果分支比较多，用：% [5 p/ K7 {2 I/ I9 e( v5 R
inspect <expression>5 {( G: V- F/ d% @5 T: W X
when <constant_list> then
! [* w1 M; U2 Z2 B* e! n <statement sequence1>;9 [& @: S! b$ c4 }
when <constant_list> then
: N& I5 i5 T/ s) f2 L <statement sequence2>;' d) L, b, B$ t) {, l
...( l8 _- K F+ B+ H6 v5 C
else
+ D% R% Z8 R+ @6 B2 [ H+ G <statement sequence3>;
7 [- M- G% g, {end;- ]! X: E; k1 U5 ^4 j
% ~: }. R9 i! V) m2 Q }. t2循环语句0 q0 T( E" o! y9 @& | m' v$ h. e3 a
(1) from <statement sequence1>/ m8 u- L5 }; U/ V
until <condition> loop
1 A/ n9 N! D& G$ p( O, n5 A <statement sequence2>;1 e! U, E7 ^$ E1 ^/ U
end;
* M1 ^! a% k9 J V (2) while <condition> loop
8 i$ N: D6 ^! u- C* j <statement sequence1>;
! Y( U2 s6 }7 A; U) ~$ B/ o, F end;, I- y+ n8 b' j& w
(3) repeat
7 H8 ]+ S9 S% w6 K& M G( W8 q' \ <statement sequence1>;, w2 O3 {( v, J0 j- G' e& v6 z. L' C
until <condition>;
$ K3 S2 q' q5 h8 O (4) for <condition> to <condition> loop, T8 U3 M. l7 E: L* n
<statement sequence1>;! I; ]. N O8 b% Y
next;
, W" k7 y1 u6 W3中断语句
' E7 {+ S6 G# x# c' H, a waituntil <condition> prio <integer expression>;
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以上为常用的函数！
' P0 u1 I2 f; \ }3 T- U! T6 [还有很多，如有需要我把资料发到你邮箱里
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