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发表于 2012-11-13 08:48:12
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1判断语句$ h2 h8 I3 W6 N. K1 e% t( x7 Q$ s C
if <condition> then, E) {( ^6 E1 y1 s- I# o
<statement sequence1>;
X0 Z$ s- ^; o' M# X# u* y; W! M ] elseif <condition> then
/ y# @" v% V, r' `; N <statement sequence2>;
0 H+ n+ W" d8 q: u Y$ e else 4 {7 [# [2 @+ F! H3 I5 m
<statement sequence3>;
. r& W X/ H4 |" g6 Z7 ^8 r8 J end;
, v8 u8 J& I2 `% M& I; _1 K, `如果分支比较多，用：
# ~ |) y2 W! u s9 @9 s inspect <expression>3 v* J$ @" w- N; ?& J2 @
when <constant_list> then( o1 t) @+ L( j1 ]$ o! ]
<statement sequence1>;
4 [( W3 v8 e3 W$ ?4 f when <constant_list> then
! p+ v q1 U6 t. j- x4 K <statement sequence2>;+ {( u5 n. o: w
...
. S/ _ R! ^. A( V3 ?6 a7 \& c: N else
2 \' X3 g7 i; R0 y% x1 H3 B: x9 w <statement sequence3>;
' N: S# u( a$ G" Wend;
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7 F; K2 c/ T3 N8 s2循环语句
- Y8 ]) j, g. O (1) from <statement sequence1>. ~9 W! A" O, d/ \2 s& q
until <condition> loop. [0 }! r, P4 Z# g
<statement sequence2>;; i( M! n p A2 O! g8 h* S; j& ~
end;
; {- _* W3 ~/ c/ j V- D. e (2) while <condition> loop
# k0 C3 U1 Y. @& X5 {+ Z <statement sequence1>;
/ ^3 m( k6 A9 x8 Y$ C1 K end;
@3 L5 @5 j) _- w# W& g/ m3 T O8 p (3) repeat
8 q0 m' C% f) } <statement sequence1>;1 G7 F! n% r, t B1 p& c: p
until <condition>;
4 y( f8 k4 |, n% F/ U+ ?' P (4) for <condition> to <condition> loop5 y$ @) J% d% a! y3 j* U
<statement sequence1>;
Y6 o* D3 w8 a) s) O; V4 u% O- W next;, S. b$ [/ x. I/ e. t5 `, W
3中断语句
& M$ S8 L* W a; v) d O waituntil <condition> prio <integer expression>;
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1 g& e e V7 ~8 f5 q以上为常用的函数！
) `0 w, j& E2 h' \0 ~! F# E: B3 {还有很多，如有需要我把资料发到你邮箱里
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