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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
" L/ K+ y2 P# v+ e' D if <condition> then
# |- Y4 n1 C" }7 c* L, @, x <statement sequence1>;
' J2 D. K7 z2 b+ _ a elseif <condition> then
! @) j) U: T9 w$ f <statement sequence2>;
! s( P5 U9 C& z: @' @ else
8 r" G0 [% Y% g; H <statement sequence3>;
6 a9 X' `* F% ~ end;
0 ?! x# h# @: o, I2 n; B& Y$ q9 p如果分支比较多，用：
( n2 c# g! B1 K4 w* @ inspect <expression>& g$ P9 i2 Z3 I4 `
when <constant_list> then- v. [; L8 i8 A1 J/ E" C
<statement sequence1>;( S! [* p7 ] B
when <constant_list> then! M* j8 `/ ?9 u* _% r$ O
<statement sequence2>;
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else
7 P2 u; p! b. T& \, H% t0 T <statement sequence3>;
/ s" R5 ?$ C# ~end;
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2循环语句5 w. A, q' P' E# {
(1) from <statement sequence1>% x9 S) C k p3 {9 \
until <condition> loop; \: B A, m& X" f
<statement sequence2>;6 [9 m3 H1 k- s' F: I
end;
" N: _8 x, d' u2 }, N: n6 u+ Q (2) while <condition> loop
6 r2 `/ ]/ X. e# c) V <statement sequence1>;
" S; y$ b* ~% d end;
# r, J5 l# f4 M (3) repeat / M0 |5 N# g4 U: L" Y8 _
<statement sequence1>;
: t3 D/ e8 ?: r until <condition>;. g7 H& l: H9 {# _6 M9 W
(4) for <condition> to <condition> loop" O1 L" ~3 d0 _' ^& ]
<statement sequence1>;% {- A& s& _4 t J/ k! Y$ w( p, } K
next;# p- H+ u& L g8 V0 [1 n, w* L: g
3中断语句
$ _! V! A$ G$ |1 T+ [; o waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% ]: H& i @+ V还有很多，如有需要我把资料发到你邮箱里 8 U) j& B8 m S( T
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