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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
/ W, m+ M- x3 U8 { if <condition> then
7 m5 ~: d4 k5 O <statement sequence1>;, Q2 j; N- }+ I& q* j3 o
elseif <condition> then; |# d2 h! g! `. b1 m2 O
<statement sequence2>;
% f* ~5 ~8 X9 L, C else : _$ ~4 H, x7 V$ r" F. e- I: G. R
<statement sequence3>;
X9 I$ C O( F) L; ]! G6 W end;
2 @) o, o% h, e9 H. {如果分支比较多，用：
8 ]8 e4 k) J/ M, ~/ a2 k, ` inspect <expression>
1 u( l% q9 E; y1 {; {& u1 Z when <constant_list> then7 G2 {( U( y. r+ [( i
<statement sequence1>;
' b6 W+ P: P3 e$ Q when <constant_list> then
7 b v$ \" o0 c( }* t <statement sequence2>;
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else
; h: F: J8 r2 Z! `# w- N! \ <statement sequence3>;' }0 m; c3 p7 q6 |& |! N) S
end;0 p) {6 V4 l; {. Q& j2 G
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2循环语句
6 ]" v- Q5 \, p0 x9 D (1) from <statement sequence1>% u; W4 E" P, d4 V
until <condition> loop
# D$ ^9 k/ j6 k' o0 r V <statement sequence2>;. s# ]+ U$ T8 r5 C' n. K) d1 ]2 e
end;# a; R9 M7 w/ m2 _/ [
(2) while <condition> loop
! r+ K5 H+ W! p# g' [ <statement sequence1>;" X1 P* H: w0 L4 X8 {3 h7 O
end;
+ W$ ~4 @0 `, i (3) repeat
^9 ?! b" b& P2 A <statement sequence1>;
7 p: N1 u, A) P4 ` d8 s1 Y until <condition>;) c; s7 R$ F$ [- R
(4) for <condition> to <condition> loop
9 F# G8 W, s2 [( r <statement sequence1>;
. E9 R6 n) _/ U1 r) z/ C1 T8 U next;
& X/ x# C) R4 W% ]7 |3中断语句8 Y2 |$ u7 Q3 g$ t
waituntil <condition> prio <integer expression>;5 ? W+ _1 C3 G L! N) S& ?0 J
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以上为常用的函数！- g% O. U/ C) h0 y2 W; C' q
还有很多，如有需要我把资料发到你邮箱里 & i0 }+ |) k- j
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