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发表于 2012-11-13 08:48:12
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1判断语句
: K. v) ?0 z3 V* Z7 x- K if <condition> then
1 t1 z3 R. N, |* v3 i6 K" P1 K <statement sequence1>;
t! H4 O) z0 e) n% }& S1 r, f- m8 e/ D elseif <condition> then' P* D& y, s! A! d3 Q
<statement sequence2>;
$ z' A k7 P9 z% t3 k else D- N4 p# v( ~) U% b
<statement sequence3>;% T2 B' x9 {# [0 Q' y2 K
end;
# T# D4 U4 `. \5 v, T7 z如果分支比较多,用:; O7 m ?3 v, ], Z" F- ~% I
inspect <expression>
. n7 Q# C% W" v& m9 G when <constant_list> then
4 m3 B3 w5 c8 T# D: B, i <statement sequence1>;; |, v, c/ z( n0 [+ A, m: {) @
when <constant_list> then
9 S6 _0 ]9 }" Y. [! e' u# u7 Q <statement sequence2>;: ?* S. m. f. \2 V9 m. y8 `' m
...
' X7 D x; [: { else
+ E& o6 s" e" a" x7 Q. Z3 r <statement sequence3>;
# E- T* l+ h. a, M" y1 X6 ^end;* Y' M" p2 n* D( }0 S4 {
1 M( _$ d# R \- m" I% o& J0 {9 m2循环语句
- [7 v2 F& e1 D: A (1) from <statement sequence1>/ \2 N. k1 `8 H2 o: C! r0 x$ A
until <condition> loop
" @+ o( i- H" i( r/ f* y$ p+ z! c <statement sequence2>;
+ g6 W# }4 K0 ~* l j; J end;
c5 J% ^: R" s+ t/ {" k (2) while <condition> loop
U& |1 d! Z& ~! v z5 h+ M <statement sequence1>;: s# O1 @* e- ~
end;3 n8 ]2 v# \: B6 g* W
(3) repeat + w& y. g# s8 m& T5 x
<statement sequence1>;
) I4 C1 S; j$ P3 U7 N( x until <condition>;$ D$ V# @) s4 {
(4) for <condition> to <condition> loop
2 U& s' |' c! \' Z2 k+ H5 U <statement sequence1>;
; i/ `6 @4 D; ~- t: l, y next;
`& U( f5 b, E2 s' W5 v$ X) D3中断语句1 j3 c! Q( Y# Z
waituntil <condition> prio <integer expression>;
$ ~% F: X6 l/ `3 T. ]9 Q, I+ W1 \8 i0 B) B K+ V$ W# W
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以上为常用的函数!4 g$ w4 z1 A4 A$ B0 p- P" Y
还有很多,如有需要我把资料发到你邮箱里
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