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发表于 2012-11-13 08:48:12
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1判断语句8 y6 i0 n7 a1 m, ~( A* V0 ?
if <condition> then
& b$ M. x6 {. O' y& I# i0 @ <statement sequence1>;
0 O/ o: Y" z, V$ _! G+ ^% G p. ^ elseif <condition> then! f O+ E# F, Y0 ?
<statement sequence2>;
! D% j" @- K* S0 q* J3 y4 o else
9 u( B2 ?9 }& O <statement sequence3>;
& u$ Y/ f6 n- s6 l) F, u, P. W end;4 l1 ~( s4 ?8 M! e2 D2 |( h4 g# w. y+ N
如果分支比较多，用：
5 m2 O9 ~! W1 p6 A- [0 j- ]' N9 ] inspect <expression>( I/ H8 ^ g* Q; j9 y9 E; p0 s* w7 q0 p
when <constant_list> then
% S; E1 S6 K4 l' \ <statement sequence1>;
9 Z( U3 t$ k- n when <constant_list> then
# r/ ^! T# }* ?* O8 u <statement sequence2>;
! [, y3 \9 h9 S* b ...
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<statement sequence3>;8 O( e' S- [) Q z; _/ _
end;3 K5 {* h6 ?5 J) h% l
; ?: ]% T3 X5 {* j5 ?8 e% [7 h2 c2循环语句
( C) l# n) z, b' n( |' _ (1) from <statement sequence1>
% v% m: p! j+ ^& _1 o until <condition> loop
# Y+ t2 P7 U( g# I4 w <statement sequence2>;. y5 B5 m3 X5 `' s) ?# }+ \
end;) d9 O! `) A( t& H& K& [
(2) while <condition> loop
) d+ u4 a5 ^2 [$ K. r <statement sequence1>;
, ?" Z+ N' u8 Y% H* T. K: d- H end;4 w0 R7 d% k, O( t# l" D! v
(3) repeat 9 X4 d8 s! M! G8 v7 b) d+ c
<statement sequence1>;
+ z: i4 Y( [) u1 K z& l/ Q: q until <condition>;
% j9 P& F W7 L( t5 P! _- r (4) for <condition> to <condition> loop/ U5 d' o# L2 F% s3 J/ A. s+ @
<statement sequence1>;& K* \* G8 |" o1 \# J
next;
. f$ U: u3 @0 ^6 s( {% l3 }* V* o8 g3中断语句* ]5 \. q' p, K: i
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 q, l- _ h1 q) S. B
还有很多，如有需要我把资料发到你邮箱里
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