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发表于 2012-11-13 08:48:12
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1判断语句" C0 i% m1 ]( N5 y* u
if <condition> then, A/ x: L0 J6 r
<statement sequence1>;; w/ K% `+ _: E- Z
elseif <condition> then% @( ^2 h4 T- f! @& P1 y
<statement sequence2>;
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<statement sequence3>;3 z `& W: n) t% Z
end;
7 J3 V8 e( N2 X- X: S4 e7 q# h如果分支比较多，用：
. Z* t9 N: v% D) c2 ~5 o2 M) |" @ inspect <expression>
& N& m1 |$ w. E7 ?1 j when <constant_list> then
/ a& N; m, w4 q- e <statement sequence1>;$ Z3 X# A8 G" q
when <constant_list> then
) q2 u4 t# E4 C9 P9 i" A, o <statement sequence2>;% u3 c/ O% o! p" ?3 Q
...
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( R! p0 J# W; V <statement sequence3>;8 ]9 N. h) n, N; b9 z
end;
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2循环语句0 m# R) s" k; |6 u6 N* Q
(1) from <statement sequence1>9 `/ K& d5 i& }* L( q
until <condition> loop
8 w6 M! m$ G0 ?8 P+ ~, _ <statement sequence2>;
: G. z- l% [2 {' X7 X) e- P0 W end;
: C2 C$ J8 j8 C- U2 G) V$ g (2) while <condition> loop7 j3 E' R2 M- p$ {' s
<statement sequence1>;
, M, e1 g- B$ o( @1 ? end;
5 ?. ]1 @8 k) ^( x) s5 @' X (3) repeat
5 @8 ^6 b( P) s& R n' W- n: M <statement sequence1>;& f6 {: I6 R- K; H5 ]5 }4 Y* z
until <condition>;) O* n1 i+ I9 u- v6 W; p
(4) for <condition> to <condition> loop
2 J! Y* ^& z1 i% [3 H& x <statement sequence1>;- `2 s0 |6 ?1 Z
next; ^# x. ^/ t8 |
3中断语句
3 j9 m2 r1 o& z0 n6 m4 D& D1 P waituntil <condition> prio <integer expression>;2 Y) A0 D4 A: w: G+ p
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以上为常用的函数！4 Q8 I) P* X6 v/ @: Q
还有很多，如有需要我把资料发到你邮箱里
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