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发表于 2012-11-13 08:48:12
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1判断语句. W7 Q( v) ?3 c0 I* g
if <condition> then N1 ?0 V. g8 Y0 }7 w. V K8 z* L: o3 d
<statement sequence1>;8 j0 U: @6 D) ]
elseif <condition> then
5 W3 k& x5 C+ F+ d9 T" H, N <statement sequence2>;3 L* f- h' W1 O- y/ C+ y
else
* Y, m1 w- v1 _* Q <statement sequence3>;+ T9 \* U' R- a+ o: o4 ]" O3 v
end;: o- w& R" {* l3 f q( B$ C, ]+ c) n
如果分支比较多，用：
+ o! ~# y$ \' M" B I9 D inspect <expression>2 i+ t# ~' c8 ~ W+ M. s
when <constant_list> then
# K' F4 Y! W9 x8 t# y0 o <statement sequence1>;# G3 D4 f2 M0 a- a0 |) \3 j, i# d: I% b
when <constant_list> then) `$ k$ N1 B- n; |# F& `/ Z3 j
<statement sequence2>;
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else" x3 Y8 A8 j* Y0 F& |$ t t- v
<statement sequence3>;0 j8 s* N/ }( _/ n: E
end;
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) m7 l, ^/ J: @2循环语句
+ Z- h }* ]' a, _! O8 ] (1) from <statement sequence1>
! R* g: d& A0 Q until <condition> loop- d4 f% r1 ]/ o. v/ i: P0 z
<statement sequence2>;' i9 F0 G/ f6 U. u* ]/ J6 c
end;( N2 r z, k7 V7 |) I+ K( f+ J1 c
(2) while <condition> loop0 W% W9 e3 [' x; @2 b- ]
<statement sequence1>;
' U9 [7 Z8 w6 k end;
2 E( s. y4 f) _; l1 | (3) repeat l G0 Q. T+ q0 P7 ]
<statement sequence1>;8 u. }0 c) \( n4 ^0 n# P3 x& g
until <condition>;7 n7 L* k" q% S }, ]3 P
(4) for <condition> to <condition> loop- Z" u% I# ]' f) A( M$ S
<statement sequence1>;
1 _4 Y" s# ^) j# d! n" Q next;
& t& |4 I+ d* h& b3中断语句$ K, r8 l4 Y+ u. T H8 w+ v: N/ t
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ T6 E2 z c& S# S还有很多，如有需要我把资料发到你邮箱里 7 p- r& @: Z: B. `. p' d9 M
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