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发表于 2012-11-13 08:48:12
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1判断语句5 a# \% @8 m5 ^# B
if <condition> then$ A, |0 c1 _4 u1 Z( n# R# O: ~# A
<statement sequence1>;
0 g4 y$ m7 q8 J# R, ` elseif <condition> then( u5 H( [! B: T8 Q# b
<statement sequence2>;
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<statement sequence3>;- Z0 F0 X# ]( |1 i0 {) M: P
end;
3 o9 D8 C2 { m1 W如果分支比较多，用：
3 H# O' g, h: m' `7 M) n inspect <expression>& B* j2 Y0 e7 S, J& v
when <constant_list> then( [# j% K* j, a- I# H+ S. ~
<statement sequence1>;! p% ]5 g" t- z7 l @9 g
when <constant_list> then
7 Q A$ ^9 }& k: d( F) D <statement sequence2>;% k. \% t) @: ~$ \- z) s; O: I C
...
( Y& z8 L! m5 a0 L% r else
" E1 h( N, Z: n: l2 T% b <statement sequence3>;- l- Y8 N' U% t3 {/ {
end;, [% @0 Y( C+ U% J5 U5 P
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2循环语句
2 Z& u& X* D% d7 K (1) from <statement sequence1>0 m2 K4 Y- q; l! Q5 x: O4 Q
until <condition> loop
( \! e$ u) j6 q# E9 V3 x; x! J <statement sequence2>;2 I0 k( X/ O8 V. S
end;1 W) a+ x/ |0 o" X- J
(2) while <condition> loop0 T8 u: W: j3 B1 \. ~
<statement sequence1>;, [! B1 a6 J. o: v% B7 ^7 }6 l
end;
7 C$ s# G9 l5 O, B: J# r (3) repeat
5 Z( ^& M2 v' N <statement sequence1>;# q) f j5 d5 M0 n$ L) |
until <condition>;! K$ F% u: N: ]
(4) for <condition> to <condition> loop
" F) U2 k6 v* q4 o+ }3 r I3 e# A <statement sequence1>;
7 h- Z5 b# _+ A A next;+ c+ R; V* D7 l% x3 T
3中断语句
/ b! n! y1 A. @8 G9 h* O' E waituntil <condition> prio <integer expression>;- ^# c) ~ n3 w$ E3 K
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; H( Z# K- _+ |8 Y6 j以上为常用的函数！# a# {, k( Y. j2 p: w9 B
还有很多，如有需要我把资料发到你邮箱里 1 U3 l, S- h8 O% K8 {3 u' y3 g
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