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发表于 2012-11-13 08:48:12
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1判断语句* }2 Z2 {* ? B: V- h6 Q( u; C. m# l
if <condition> then
2 j8 r( A, R3 e4 `. V <statement sequence1>;
( q% d$ `& E+ i& `" M& q elseif <condition> then6 {1 v$ _) }; v* @5 q
<statement sequence2>;
% Q5 S& @2 D. h0 J# a else
( F9 Y3 ~2 j" X5 i <statement sequence3>;+ N x" x2 Z3 {: e2 q
end;
- D e% X" }9 I$ f" M& ^+ k, O如果分支比较多，用：
" S. a! ?+ b3 _+ C% s inspect <expression>7 ` p6 l$ b% a2 W3 t4 D+ p
when <constant_list> then' M3 l( C7 Y7 ?2 i
<statement sequence1>;
; Y { ~' X7 V9 J when <constant_list> then
( a# y& W; k7 B <statement sequence2>;6 u& C7 F4 S! l$ n% N# z
...
5 ~3 Q% J, u: m; c J$ {4 `% \ else; K' [9 H, G" \* i+ L1 V4 p: e
<statement sequence3>;. g: ]* D) |6 c$ M! d
end;2 }0 u8 r2 J' G6 z4 k8 t6 X4 \
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2循环语句% Y$ z* a6 X: U+ j( r
(1) from <statement sequence1>
5 P% ^. y# u% O. q until <condition> loop5 C. f2 l _3 d' y! G# @% {
<statement sequence2>;
2 F1 r+ q9 B" u4 c( v2 ~1 q3 g9 r' z end;, V7 Z3 r" \' s
(2) while <condition> loop5 O3 u" J# P' F! V- H/ F, e
<statement sequence1>;
! h" V$ X# }( j. F end;
3 S& v/ T$ ?5 E/ a$ p% g (3) repeat
7 W! b$ W; I4 Y' [ <statement sequence1>;7 N- ^% w; }) q, {2 W- L$ }' I
until <condition>;* P6 d1 G% j' t" \2 E/ y
(4) for <condition> to <condition> loop
0 }# C9 e; z2 |: V: Y- f2 I ]7 L <statement sequence1>;
* c9 R7 t# S0 P- F- X8 X$ O next; N" @6 T$ D1 B) f, u
3中断语句
" n9 O) O* x- p2 n- o/ f waituntil <condition> prio <integer expression>;9 b9 M. G- o, j$ G) G' s2 L
- a, {" C) H, X+ j
. `, P K' }, I! G. t0 [& z以上为常用的函数！6 G% W$ E2 x& v+ u( u$ s- m
还有很多，如有需要我把资料发到你邮箱里 4 r9 W) j7 P0 n3 w9 K
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