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发表于 2012-11-13 08:48:12
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1判断语句
2 _. ]8 k* V: Y! e4 b6 @ if <condition> then* x- @ G& s; A3 ^# L0 j9 y5 j2 m
<statement sequence1>;) i2 \7 W6 d7 l7 I* ]: R8 E- c
elseif <condition> then7 @+ j5 M. E8 ]! J
<statement sequence2>; w" v6 g% ^( ~. S
else
; `7 N9 Z8 [9 L1 d) w- K& t; ^- P <statement sequence3>;, n+ c" t8 A/ a9 S* ]) Z1 R4 v
end;
6 y- J! h7 B' U- I如果分支比较多，用：
9 R+ F1 u Q, Y" ?2 J" P inspect <expression>
# G- u: o6 }) f1 C* Q# T when <constant_list> then0 J+ f+ z/ x1 f( T, o
<statement sequence1>;' |$ F5 {$ Y b' \5 a( m9 k
when <constant_list> then5 V r6 A$ ]% A! X+ z; j! i
<statement sequence2>;
. z$ y6 u0 L! C4 D$ _ ...
# P* X* x# v. e, N( ?3 ^0 s else
. k2 k% f. t; ~( R/ G' Z; d6 [ <statement sequence3>;
9 E# f! P: H2 u) {4 A# H, Uend;
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$ I2 ]$ j$ p) a7 K2循环语句
/ q& G" p8 L V q (1) from <statement sequence1>: ], ~7 ~" B: Z( r. d! V
until <condition> loop1 W; Q; W7 ` A% T, r
<statement sequence2>;7 q& e& U4 u3 p1 |, j9 \5 ^. q
end;! V5 v: r$ b, ]. I7 l, e
(2) while <condition> loop
3 z, P; h0 _; o* B* b <statement sequence1>;$ K H m% G1 M D8 o
end;" r/ a6 M* s# H, M ]
(3) repeat
9 e9 q0 n7 l0 g% K9 R <statement sequence1>;. N. Y( a. \ I( O5 ?! b U
until <condition>;
' L/ A7 Z3 s7 d8 w g6 \ (4) for <condition> to <condition> loop
9 |: r8 M* _# S3 c) ^0 G <statement sequence1>;% t2 W' |& ^* I+ T
next;
2 O& q9 |3 e2 g, |/ x( ]4 @3中断语句! u/ L' G: y- _ V+ \* U
waituntil <condition> prio <integer expression>;0 [ x. Z0 X# M( a$ i5 f
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以上为常用的函数！
7 V8 }6 x, G# i! [: a还有很多，如有需要我把资料发到你邮箱里
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