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发表于 2012-11-13 08:48:12
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1判断语句6 n* s, Q, C6 ?) S7 A) ?* T. R, g
if <condition> then% B3 d" c8 h4 S% Y& c* }
<statement sequence1>;
k! y; H2 V/ s. A' p) N3 [ elseif <condition> then8 q2 {/ \8 G \* t5 I4 [
<statement sequence2>;7 h; I9 r" Z' y. \* u
else : L9 L+ C6 ? f: E
<statement sequence3>;+ ^. _% [& o$ s( I2 `
end;
- B% x3 ]) { _4 t# ?如果分支比较多，用：# \1 z: |* u- Y6 f
inspect <expression>
6 d- ~+ H- \+ v. E1 Q- D( \1 v when <constant_list> then
% t# I9 q- y0 Q" p4 P8 W: X# i <statement sequence1>;: z3 L5 J3 I% J' Z4 B
when <constant_list> then* ~- \3 t7 r! |5 e% H/ T
<statement sequence2>;# K6 J) i* _: Q$ B8 N) S; I J
...
5 @2 r5 g$ |1 @0 c$ Q' O else
9 p& w' Q" c) b% Z! I- t <statement sequence3>;( T- f1 ]* ?' c ]
end;
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Q/ o& @/ F( f J u2 Z$ s2循环语句
@" ]# p3 n# }- F, X6 A (1) from <statement sequence1>
( ]- @0 X0 ^2 I! x+ h until <condition> loop
, P5 i* D1 l% k2 ?% w <statement sequence2>;
7 N+ J6 z" X/ v& G& F. o end;
/ g7 G0 U: m R6 A+ c3 c (2) while <condition> loop
2 o3 z0 Z2 A: P; G" E6 Y5 M <statement sequence1>;5 {$ L8 S: J1 x( O0 E4 n
end;. s f% R7 I# I& n' P
(3) repeat
, U4 T! ~3 O7 @( v0 O <statement sequence1>;
1 ]! }% U+ Z1 E7 f until <condition>;
- [# R6 F0 n) B0 y! E2 k (4) for <condition> to <condition> loop
7 ?/ C X5 b. O, t9 G/ } <statement sequence1>;
$ F8 L) f& Y. s/ o R next;+ F r+ K' P9 F6 }# ]" s( o3 r
3中断语句/ }" j" Y5 P/ w- K
waituntil <condition> prio <integer expression>;. n; N2 B( {* u i
6 C1 m" ? ~$ _, B; a+ u: { N* |, B6 p1 P5 }: [
以上为常用的函数！
; k7 d8 N* d3 w+ i! n; n还有很多，如有需要我把资料发到你邮箱里
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