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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
- U3 w0 A, U9 O3 H0 h# g$ S if <condition> then: Q& e! ^ `" H8 {- Q
<statement sequence1>;3 K; ?6 R5 L0 D# N/ h
elseif <condition> then9 \ i8 }" X& j% ?" G/ G* g
<statement sequence2>;
( D7 A! v: d& s- l6 I# K3 n& T else
. v2 V) [/ l, J7 @) t- P2 H <statement sequence3>;' q1 n2 }/ T8 w6 f% s3 D
end;
6 R& K) P" `* @. K如果分支比较多，用：
' |: Y8 K/ B7 |" G: v inspect <expression> W9 I/ I) m, c1 {8 [" ?
when <constant_list> then- U3 a! L7 c- t- U. b
<statement sequence1>;; L6 n6 j, P* c
when <constant_list> then( N- v! w3 N6 A; o/ X @- L; F
<statement sequence2>;7 i# l6 V& c( J% K
...
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: b4 e8 E$ H+ J+ ?' v' T2 d! X <statement sequence3>; @# w3 V& |+ K" \. i6 s! m
end;
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2循环语句
+ S9 Z# T) N9 V (1) from <statement sequence1>
3 m0 ]2 t$ J& |, s4 `; a' ` until <condition> loop
4 @+ G* j& Q6 C' `4 e <statement sequence2>;
7 [3 N' S6 d. x; D8 g1 N end;
, ~ [: w7 i0 Q: |/ z4 b8 F (2) while <condition> loop2 w" O" x8 R% E4 y6 ~
<statement sequence1>;
' \8 Y" Z" A3 H4 t# y1 u) G5 ? end;
" p3 m. v& w5 l9 L7 i (3) repeat ?# {7 k$ r1 U5 P# g! V9 h
<statement sequence1>;
5 g, k- w9 s# k9 J) o: W# U- S- a until <condition>;
, R0 G' p5 ^- U# K1 u* ~3 O (4) for <condition> to <condition> loop
- j Q0 n, i# \$ p <statement sequence1>;
. U' s4 ]! b+ w: d( k next;; v1 `' `) u3 K2 n' A2 i4 \
3中断语句
9 M' h/ O9 w2 X, H waituntil <condition> prio <integer expression>;
( ?# M% w) h! i# w; j& U1 x" p7 {+ j9 |
6 _) q: }* P0 }以上为常用的函数！
3 ^. X c7 w& d3 M. U1 E% R/ ?. A2 q还有很多，如有需要我把资料发到你邮箱里
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