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发表于 2012-11-13 08:48:12
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1判断语句
' g) U# W2 s" e; i! w/ A- L if <condition> then |3 x! W' E8 `* r l7 N' G( C& L
<statement sequence1>;
7 L. M" G* r7 v2 l+ n elseif <condition> then
! s- o4 }, j7 n+ ~ X3 l8 o <statement sequence2>;# X8 \+ R `0 ?# [
else
( ]2 g" Q, I3 q9 q, t <statement sequence3>;
8 R5 F- M% K8 w8 U; s2 }( f end;
5 p4 b. W5 t1 f如果分支比较多，用：
D! k: h F1 Z6 m4 D inspect <expression>; y7 g1 S4 f: w; a+ Y2 }, H3 G
when <constant_list> then! t: \1 I+ X$ d- w
<statement sequence1>;9 @+ ]4 x* h7 A. C8 {0 ~. v
when <constant_list> then
1 f. V! B( p' \& {, r5 } <statement sequence2>;
0 H8 Q0 k% i; P# [+ @( P' R ...
0 n+ t* U7 V7 Y0 M* d6 o" } else
0 F) N$ v4 Q! a0 c, k8 [3 E <statement sequence3>;
# v6 I4 G5 k4 xend;
x! r! q6 p7 \+ j' D$ J
( Y- h1 ~! V- {. \% U* k8 ~5 E2循环语句1 F8 z5 \1 l6 C9 h- x3 T
(1) from <statement sequence1>
+ @* b6 f- Q0 U until <condition> loop C& x- f3 w+ ]/ R( ~
<statement sequence2>;
0 {) I4 t' D B% k1 m6 W end;# p2 H2 p1 |0 E: D' e9 t3 E
(2) while <condition> loop# s5 |, G) R7 x$ w% N
<statement sequence1>;
0 X; b* |2 i3 c6 R% x$ W. @ end;0 N8 }; v# b. {# M
(3) repeat - ^* Y$ j2 g0 ?; T
<statement sequence1>;! d4 V# [$ f4 R5 c
until <condition>;
# g$ M# `! p, o" A* @ W" o (4) for <condition> to <condition> loop) [/ Z0 D. X" W2 ^) J; ~) ~
<statement sequence1>;8 `* h1 G7 ?" P
next;
; u& h& ]" V* q$ b* y3中断语句
1 q7 u8 R& g/ F3 d8 d; m waituntil <condition> prio <integer expression>;
, a3 W9 x# o- f, @
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以上为常用的函数！, H ] z& [8 E8 T, v
还有很多，如有需要我把资料发到你邮箱里 + {% v% f7 U6 I+ z% g& l
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