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发表于 2012-11-13 08:48:12
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1判断语句
$ a( F: Z& ?+ e if <condition> then
, h6 D& O# X7 ^1 b <statement sequence1>;' c, t& a6 |1 K1 T8 `
elseif <condition> then" t4 w6 u- U* d! w
<statement sequence2>;
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<statement sequence3>;
0 H0 Y+ ?' {. C* d- [3 q5 D$ H end;
$ P- v6 B7 j; k# [% M8 X如果分支比较多，用：
- x5 P7 N+ h5 j: b! j) } inspect <expression>8 }' z- \) M( l, B% L& k
when <constant_list> then- G/ e3 Y* m4 ^( M7 a1 p# _
<statement sequence1>;
0 g* n2 {: ?" S3 c when <constant_list> then
7 p7 L+ o! [4 z8 C& E/ l <statement sequence2>;
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else
) Z3 P3 r; c% _7 j4 V) ` <statement sequence3>;
% w$ `) F1 i* e2 b: Kend;
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2循环语句% \, A+ M3 Y, J8 F- l8 m4 B
(1) from <statement sequence1>
S3 U. D' k p% S% j3 O9 | until <condition> loop1 |' a0 R1 Y, Q. o2 J
<statement sequence2>;( e) h9 h+ ]! z! s! |# z1 V
end;
9 }$ B( f0 v! X2 B: _ (2) while <condition> loop
: @6 }0 D' H3 H8 n& d2 T <statement sequence1>; ^$ B, o; K" i4 ]+ p: {
end;
) D; {# }/ |/ |) d3 j Y (3) repeat
/ n) m" O# M( v8 ], C4 W+ O <statement sequence1>;& _! ~0 W$ I' X* [
until <condition>;4 U0 n; y8 W# E/ x
(4) for <condition> to <condition> loop2 o( w/ q$ u @/ b8 l7 C
<statement sequence1>;; ^! s7 [. ?& V9 L* e# o- u% L
next;
) u) n. [5 @. Z5 z) C) e3中断语句
: B+ H, @ N. ^0 s4 b waituntil <condition> prio <integer expression>;. E6 u: \1 L. {0 J c
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. b7 v7 I. ]; s( k, P: _1 P0 a以上为常用的函数！
; `& r* ], |; J# \+ L! I还有很多，如有需要我把资料发到你邮箱里
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