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发表于 2012-11-13 08:48:12
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1判断语句. B7 h; [4 v; n0 t% P
if <condition> then8 C% m3 z6 h& x" `: u6 o9 V2 p" }
<statement sequence1>;. M5 s7 V: Y% Z) }! |
elseif <condition> then
! ^& v, V( G+ [/ N" H% \ <statement sequence2>;: g. H1 q9 C0 w8 A( E! \6 P
else 9 h! A7 c4 y- I& l5 k7 M: h
<statement sequence3>;
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如果分支比较多，用：
6 p: _, Y, b; E! Q2 \! e% n$ b5 ` inspect <expression>
" N% ]5 _) B9 Q1 k when <constant_list> then( I4 o8 q( j9 `3 A5 N' N
<statement sequence1>; D( K) D5 C. p* R
when <constant_list> then
! p3 p6 g: K( P Z* ]5 B+ n0 X <statement sequence2>;
7 o) d* n$ {, n" | ...
" o0 ^9 q1 c3 `5 W0 @ else
5 y4 i1 v4 H4 u4 ] <statement sequence3>;
' H3 }& p0 ~, u7 }0 ]$ H* `end;
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8 k% X% D9 [# T0 O; z2循环语句
f5 W8 u" x; o, ?& H3 N& ?4 O (1) from <statement sequence1>% d3 b+ o; ^# N) u# e s8 O
until <condition> loop' `: P5 G: A- F- z& w0 w
<statement sequence2>;
o J2 q5 N0 U. m( B9 t3 H4 A end;
8 O; ^# G; D0 ?- x) Q (2) while <condition> loop2 B/ s7 E9 y. X8 _
<statement sequence1>;
1 E B# ]' a- v- g end;
5 J% p5 x) W' C (3) repeat
' t' V2 k# _$ @ <statement sequence1>;* }+ i' `2 Y9 \2 j6 o
until <condition>;
& B4 {1 r1 Y) o (4) for <condition> to <condition> loop
8 R3 J+ b% W, r8 s, K; W <statement sequence1>;' V& v9 |3 p! `0 a1 c" g; w- ~
next;2 w$ e& K" l2 G2 r1 F
3中断语句* O* N1 w$ J3 V+ C. X
waituntil <condition> prio <integer expression>;
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以上为常用的函数！* W3 [6 ]1 w- D& n v4 v+ x( b9 Y
还有很多，如有需要我把资料发到你邮箱里
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