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发表于 2012-11-13 08:48:12
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1判断语句) \" N! [6 A9 {% x
if <condition> then! H5 Z$ _2 m5 Q6 j8 _0 v2 \' W
<statement sequence1>;
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<statement sequence2>;- U% i$ n. Z. Z, B
else 9 w% E+ _) v- u
<statement sequence3>;( p! M2 G2 `( Z; u5 \$ u/ F/ ?
end;
8 I* ^) g$ x2 [: s如果分支比较多，用：
, G5 o* O# R) d: p inspect <expression>3 x* j. \- W- i- _0 E7 }
when <constant_list> then
- D1 J* P9 E5 y$ e <statement sequence1>;
S9 Y, p% ^" W0 r9 ?1 x3 e5 J when <constant_list> then ]. G2 f/ m6 o2 ]$ T% S/ B
<statement sequence2>;6 b% _! M" i4 P- R+ l; j9 j
...6 j4 A6 e8 R) s1 J9 |
else
! t7 K0 ]7 A7 r( O <statement sequence3>;
) A" E2 g1 F' M I. E/ \end;
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& z9 m# n d" R7 K0 ~2循环语句
h/ O& N ^+ i1 j) y+ X (1) from <statement sequence1>
3 d2 n' Q7 X2 D& C4 p until <condition> loop
3 l1 _1 B: O- O$ ^2 a <statement sequence2>;: K( D$ N2 Z- c U) H" x
end;
1 c2 V3 P- [8 t C: a0 f (2) while <condition> loop0 q! r' e2 h. z8 z. h; e
<statement sequence1>;/ |! J4 U4 n8 y; t; n7 Z& _, }9 A
end;/ A6 J4 m; Z Q }1 O/ ?: I
(3) repeat % @: i% S7 Y8 C8 c J
<statement sequence1>;
# u$ ~( `: \& M5 x7 a until <condition>;
4 t- M0 x% w' D3 ^5 l (4) for <condition> to <condition> loop$ X9 P7 K. T4 b3 \5 k
<statement sequence1>;
? N4 F) C; ^( U5 b/ S/ K7 I next;0 W9 o' I4 Z2 g9 p$ Q
3中断语句0 ?5 T" Z2 ]" [" c, g
waituntil <condition> prio <integer expression>;) x2 ?0 y. ` X1 E7 ]/ s7 u
! \) |) C) w' x: s" e
c7 v6 n- [! v0 p1 e7 c以上为常用的函数！
0 @1 l& Z( L6 I& I还有很多，如有需要我把资料发到你邮箱里
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