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发表于 2012-11-13 08:48:12
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1判断语句
( D. D, S3 W- z; E x4 Y2 f if <condition> then2 A; ?1 t& H7 w2 \8 c/ }
<statement sequence1>;
: G! T) c* c0 |2 G2 \ elseif <condition> then/ e; V$ N, [- T7 ]9 b( f$ g
<statement sequence2>;, \ A; |: q7 f% Q
else % i, v! s# s( G* [% x& b* v
<statement sequence3>;
2 S5 l) N7 n: X0 i! e* S0 j end;
+ z# @$ R% o' P/ K5 i如果分支比较多，用：) Z0 d* r* ]2 m. @9 T: X0 E, v
inspect <expression>
* U; }3 @0 X/ f when <constant_list> then
) }' d# y4 N8 w# s <statement sequence1>;
8 [9 Y$ t4 J! v. c, B" n when <constant_list> then% k d5 H% Z- b; }# P7 ?6 M: n
<statement sequence2>;- z$ [7 @- w' d, C2 S
...; l- h9 N, ?& n
else
' E5 E- E4 Y' [% l+ @ <statement sequence3>;! c0 T3 I3 S9 X" Y
end;" p+ b5 M5 B" J$ J3 [# s! A6 X6 j
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2循环语句. @9 `) R8 i* S. e: p- ?7 R- G
(1) from <statement sequence1>, ?) H9 w& \. m. O
until <condition> loop
7 M, v' l4 j# D% k. ^( \* P- ^: [ <statement sequence2>;7 S$ M! c1 }4 ]3 Z: K, p; B. ^
end;
8 a+ N- F, X: `3 _. V6 V (2) while <condition> loop
: @, Z) o5 ~9 s n9 `- g <statement sequence1>;- Y/ B+ f1 ~6 h8 R1 h1 l2 c
end;) ?$ W6 _* B. i+ F6 v% Y
(3) repeat
0 ^2 f% F) E4 N# I# J8 ^ <statement sequence1>;
' } a6 a9 T1 V: y6 @/ E until <condition>;
) g( x* e% Z, \1 V f6 Q3 D (4) for <condition> to <condition> loop
/ }& A' U( m# W7 K <statement sequence1>;: ]# n( y9 W$ _5 Z- Z2 e) d) }
next;+ r" ]$ p- W6 K; p: l. F. l" v
3中断语句
# u+ z- e1 M% Z+ I8 D* s6 A waituntil <condition> prio <integer expression>;1 g* e& e8 e9 k* T& D
$ Q( K" m4 \! E2 c
% \8 n: T) n1 _, ]" |! j' F以上为常用的函数！) P" g( |6 D$ i) a7 O2 P) F# K+ z
还有很多，如有需要我把资料发到你邮箱里 . Z" G, h* a9 R ]) f& @
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