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发表于 2012-11-13 08:48:12
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1判断语句
/ A0 E: d! y- k1 [9 }! H; O if <condition> then
; v5 m+ N: U) r" o! u9 H <statement sequence1>;
2 s9 j2 l0 \0 q4 i" n0 [ elseif <condition> then
% _$ D$ J, x6 g! `# G9 f7 ]! h <statement sequence2>;
4 h; d2 x& G" N8 s' n; i else
. b8 D) F6 _3 I {( K9 i! L7 D <statement sequence3>;
! ?$ X5 J0 }& ^ end;
8 X: \* F; Q- a- q6 \如果分支比较多，用：
' v; y, D. n! y& u% }. z) T8 Z inspect <expression>4 H2 g: \# R; A9 ?: R2 t* q
when <constant_list> then" |, I$ K1 Z0 g9 N
<statement sequence1>;
x4 e& i/ r5 W5 v% G( R% b when <constant_list> then; F2 `& `& t' n I( j& P
<statement sequence2>;# l+ {6 _7 s. s6 O. @$ u- o
...2 r- G, T2 z! p1 u# @; ]
else) c% A- c! j n/ ~* Z0 u) h
<statement sequence3>;, ~/ ~6 l; O" z# T# m2 t
end;2 m( o( g! ?8 N5 |
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2循环语句9 A0 |4 I4 |8 i" `8 ^6 r: f' i
(1) from <statement sequence1>
! f* ] R3 ]1 x0 i* G until <condition> loop2 [2 d) n9 S" B/ S* [0 Q/ E7 F7 @
<statement sequence2>;) h5 Q2 {% U9 ~7 I% L! B7 {. D& Y
end;. r; S u9 Y$ P7 n& J
(2) while <condition> loop( U1 @ z7 [7 p4 a
<statement sequence1>;
# B8 z/ d: n5 i+ n- r/ V! f" W end;# J" |! X& c0 Z5 B( X+ {1 f B% G
(3) repeat
# n4 h) n: B* z) a <statement sequence1>;! b- l3 ~6 y$ G
until <condition>;
( ~+ l2 r0 P; F7 a* B (4) for <condition> to <condition> loop1 c, A9 J9 f; {) H3 \
<statement sequence1>;3 y! K. f3 o6 ?
next;& X3 C8 l0 X. }9 @& _+ ~
3中断语句
2 i+ t3 g) s8 W6 D! a/ [" f waituntil <condition> prio <integer expression>;
. n. i) o1 N* f
$ L* Y( v, j$ R. c0 a* u: ~. M0 I6 g/ T5 @) l9 }) X
以上为常用的函数！9 U5 O; l4 Z9 k. \% L( x0 l
还有很多，如有需要我把资料发到你邮箱里
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