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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
- R, q" o! b0 X8 d+ R Q d- K if <condition> then
" J' m* {1 u6 K <statement sequence1>;
2 |; Y8 w' M }5 p/ z elseif <condition> then' [7 \9 X: q' s, R! d' T
<statement sequence2>;
2 I* \; @' O& O! b else
1 g9 O# t. |( o. b <statement sequence3>;1 M" `1 L; M6 \( f* l
end;
8 Z. A6 j; P& }4 e# `如果分支比较多，用：
8 S. w/ p" l% M* e inspect <expression>
( \2 I/ s* ?4 b! d5 D when <constant_list> then
5 e$ u! A* m6 Q <statement sequence1>;
, }* _0 n0 h# n) r when <constant_list> then0 N' H% r% ?6 ^0 T4 L
<statement sequence2>;4 S4 u( a) [7 P" k6 W
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else
0 J4 y, D+ O6 x# I; _6 t <statement sequence3>;
9 k/ e' i8 d8 R, \: U$ Tend;
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' ~7 ]2 _( ^2 Z2循环语句
G* i$ R D' k% {4 }, b- v9 a (1) from <statement sequence1>
. ~" a/ |$ w' z0 o2 R: x; P until <condition> loop
/ s, T1 H+ H5 N$ E2 e0 h3 m <statement sequence2>;
# |" n, `. U1 O4 x7 N% b: O end;) x% u! b f4 u) c6 V' ~' F0 E
(2) while <condition> loop9 x: Z, g$ R2 I) P
<statement sequence1>;- T1 r( d, S( |+ `8 |2 h# C
end;
2 C+ k& \' `3 C8 M( R* W+ @( r K& L (3) repeat
) p# P3 M+ D$ }* I! H <statement sequence1>;
! @9 B$ E9 Z q8 `% r; f until <condition>;# t# P' B2 J$ D
(4) for <condition> to <condition> loop
' d0 D& ~4 V% B' A: J: w/ l7 _ <statement sequence1>;
# x8 ~: Z% {, K next;
3 D! W6 L/ U" a( ^0 h$ L2 B3中断语句+ n4 m- e% |2 p5 d& t" J
waituntil <condition> prio <integer expression>;
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# `8 i! g& w) a$ A( {7 J
) Q8 p' A) B7 p6 C/ a1 W0 A1 D以上为常用的函数！2 J+ l2 Z/ e$ G0 N4 l# b4 v
还有很多，如有需要我把资料发到你邮箱里
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