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发表于 2012-11-13 08:48:12
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1判断语句
& v! x/ ?- f0 a if <condition> then5 N% ~6 ?2 F1 W( Z$ e/ G# A
<statement sequence1>;
6 m; A9 p2 e O; H elseif <condition> then
" H0 \/ r% ]- Z# V <statement sequence2>;
9 W. Q# ?0 s, H% f. V! _& I else
, S; y7 i0 z0 H3 k <statement sequence3>;
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如果分支比较多，用：
$ w/ X. s2 V( i& M8 i) H inspect <expression>& A7 c* G! j/ B4 J- _ X
when <constant_list> then
. c2 ]% `; a. h# m# W4 n" K <statement sequence1>;
9 l X: H5 ?# R) }/ } when <constant_list> then
* {1 s1 v( M+ k# I <statement sequence2>;0 d9 w8 T" N7 G( Z# Q
...4 A( C) ?1 R' }, T0 L$ z5 ]
else, z; t, m6 Z, O
<statement sequence3>;
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O, m0 P- k) V2循环语句) N) T/ f: j" J+ j, J
(1) from <statement sequence1>
" G1 o# w% T" v0 q# J1 x until <condition> loop
# P* ~ H8 ^0 z <statement sequence2>;( Q1 k# I. ~! j" _* b8 K
end;
' Z8 m) G' ], \8 K* @2 J (2) while <condition> loop
6 p, t9 \6 h# g. W: N# N <statement sequence1>;. C9 U* x2 m5 g( o7 P% M
end;
. T) B m7 w: `- i# G3 \1 V (3) repeat 8 ?6 {# \# F7 u# d
<statement sequence1>;! v) `' B0 [" [$ b3 k' U2 U
until <condition>;
! c5 s( Z; U" B6 K" Z6 L (4) for <condition> to <condition> loop5 w) a3 w/ L$ A8 s. V! ~& [
<statement sequence1>;) a k/ |& q( }) J, e# o
next;. i5 G6 c4 {. L# h9 b
3中断语句4 ^; s2 M/ V' x9 U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 i" H) @3 P5 ~( p; x( h9 E0 ^ `
还有很多，如有需要我把资料发到你邮箱里
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