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发表于 2012-11-13 08:48:12
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1判断语句4 {- i$ a! u0 g; z X
if <condition> then
2 ~# p. a# `/ } G; M <statement sequence1>;
1 {, y' i; b/ L% s$ h6 d, o* O elseif <condition> then
) I/ D% _) X1 v j8 S: x <statement sequence2>;' E9 v* B& n( {; q* d* J
else # k y4 q* K5 p/ v) i* w
<statement sequence3>;
0 @& t$ ~& r# k4 A& ?# E; S. y; y end;
G' b! t$ t' r) q/ O1 ?' p$ T如果分支比较多，用：& z* R6 i0 \ B: g: i d
inspect <expression>' t" X, f5 ? p1 w9 \& m/ ~
when <constant_list> then0 N0 m/ D7 u5 o# _" g; n1 p
<statement sequence1>;6 A( T6 @" ]- h! y: R
when <constant_list> then H# `" y( F4 r: R" A8 K* J* ^
<statement sequence2>;
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else; V; ^1 K: F, b& q
<statement sequence3>;
/ h z9 [" Y$ Eend;! E7 \8 F" }+ V
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2循环语句
5 Y! u4 Q Z7 Z6 A (1) from <statement sequence1>
' L8 o- d% [; M* w3 c' v until <condition> loop
0 f( q/ {$ N. a# S' A) o <statement sequence2>;8 ?& X, @$ E7 _0 ^$ I$ N! h
end;* }2 E" b. l0 i2 w
(2) while <condition> loop
8 C# `& \- m) f5 U2 o. M4 w <statement sequence1>;* ^ o. K6 A7 s9 V6 F ^. ?
end;
& Z, J$ m( T# P& Q$ M0 [# A5 |, e (3) repeat % ]! |& q- x+ m. N& I4 g: t
<statement sequence1>;
/ B* d! P2 j! t; y- j1 o& J# M until <condition>;
4 A9 f: y7 y5 M4 t ^6 P% L( L (4) for <condition> to <condition> loop
: Z7 X b* O, n M <statement sequence1>;8 u/ ?+ v. ]( f/ S* O6 q
next;* ]/ W K- }- b
3中断语句
! z! A, r4 W" F* Y/ K/ w waituntil <condition> prio <integer expression>;
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5 a' f* T, [: t4 z |" j- ?1 f! a以上为常用的函数！/ P: W7 C) V- Z+ j
还有很多，如有需要我把资料发到你邮箱里
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