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发表于 2012-11-13 08:48:12
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1判断语句( D. |! M, P) z5 i! S
if <condition> then0 ~" O) J9 B0 @: @
<statement sequence1>;- M! J* D6 }6 s
elseif <condition> then' i' G3 n" h+ Y
<statement sequence2>;! k J, b4 P, Y# a: a: Q0 ~
else
% }) t+ S7 n" B H( l <statement sequence3>;7 \3 Y4 ~) f) m8 O( P2 @3 D) H* A
end;& n9 N( _$ v+ M& N1 z
如果分支比较多，用：
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when <constant_list> then% N/ y% w* e9 u. ? `
<statement sequence1>;* y6 w+ Y) p' Z R1 U
when <constant_list> then7 t. A6 Q% r" I9 }
<statement sequence2>;( O2 j# g9 e. M
...
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<statement sequence3>;
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2 g4 d: [9 V; |* b2循环语句# p) S1 I! y+ L: U& y) v m' |
(1) from <statement sequence1>
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end;
E4 h# Z6 H/ K (2) while <condition> loop
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# @" h |) w3 M$ p% p# c: Z/ j end;( _* o& h1 z/ X8 Z( z
(3) repeat
: ?1 m5 A3 I! R <statement sequence1>;
0 E ~5 M$ u& R until <condition>;
0 V: C5 f' e. |% ` (4) for <condition> to <condition> loop
; B- V0 S5 b+ j: u. L' d <statement sequence1>;' V B7 E' C4 s& ^7 W) w
next;
. j2 _: n4 m5 V5 S: \- `3中断语句
4 r- |0 m: w2 p5 \' ^: W waituntil <condition> prio <integer expression>;+ G; U, }4 O0 u9 h- j
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* o6 L3 u4 E& {3 j, G( K以上为常用的函数！$ p& o1 _# o; e- e# C+ G+ \
还有很多，如有需要我把资料发到你邮箱里 # V7 G! V. y# [
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