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发表于 2012-11-13 08:48:12
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1判断语句
5 O! Q3 N4 z8 g0 t8 i if <condition> then; j% v4 v6 Z; u/ D
<statement sequence1>;( c( g' [& L: K4 E
elseif <condition> then
1 L6 s) n3 T3 _% _ <statement sequence2>;5 s2 B3 b: k6 ]5 z) Z
else
& b3 u8 ^1 C" V$ C* S. I <statement sequence3>;
V' q9 t1 { d( s; m1 i) } end;
4 h8 h, d2 P' v; Y: k' X5 b如果分支比较多，用：
# h4 }: l7 _, ^% L+ V4 A inspect <expression>& ]. L" x9 N' e6 r: ~( P6 z' o" C
when <constant_list> then+ p2 u1 n/ t, X6 B9 w
<statement sequence1>;$ Q p1 f# v5 u6 x
when <constant_list> then
. G8 S! i1 T0 A7 P) _ [7 C- q, m <statement sequence2>;& _2 N* M' a/ P6 T+ V; d
...
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<statement sequence3>;0 ^2 |: \- e- G: w ]6 c2 M
end;
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2循环语句; J8 E( |" D% v
(1) from <statement sequence1>' o/ ~2 |6 I8 H Z
until <condition> loop
# l6 c; P5 P/ p( z <statement sequence2>;2 P2 `/ x0 f: {3 f: b" r
end;
2 i1 y" t8 N: J" a (2) while <condition> loop
" e" G) `% J) @, C <statement sequence1>;- F- x3 S$ E% b6 g! G) R3 X
end;
: U$ U) I4 I* }0 G2 n( G (3) repeat . u% G% |* k6 t& z
<statement sequence1>;. M7 d! W# h3 W
until <condition>;
% v+ m# _! ?+ t$ b (4) for <condition> to <condition> loop
: P- \$ E2 \( d' ^8 @) W8 f <statement sequence1>;* w& D5 Q0 F+ Y' p5 x, }( M& X. U
next;5 F* x% u- V7 h& \5 T
3中断语句# o" U* l8 r* I# V
waituntil <condition> prio <integer expression>;9 o) ^% b8 ]' e: K
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i; j. j# d, l- F
以上为常用的函数！
& b) H4 N: g! c X: k9 L还有很多，如有需要我把资料发到你邮箱里
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