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发表于 2012-11-13 08:48:12
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1判断语句/ \# \: d0 t' W) f4 c" n6 O
if <condition> then+ |4 `& Z* q+ d
<statement sequence1>;* u: y( f, z) ?( M7 N% |" }/ }9 D
elseif <condition> then
. ~; x2 o) X9 M! b. b9 E <statement sequence2>;
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<statement sequence3>;1 |! n# s' D) l& x @! z
end;# `0 w% Q3 s- ^6 E ~
如果分支比较多，用： |7 \; R6 f# a* x+ R) B( x
inspect <expression>
- \- \% z) t6 Z0 R8 y$ j when <constant_list> then, r# u2 J4 E- j2 c; v6 n |7 t* j
<statement sequence1>;; G/ V# z6 U- I4 l7 h+ P* S
when <constant_list> then
( v* Z c% l. s; P, s% E! I <statement sequence2>;/ e: v' p5 k4 I' B m, \) ^
...
n9 b& p; _! j* u7 f7 W else
6 I/ N1 V) \% v' G- p. J. \2 d& L <statement sequence3>;, q o! [: d9 n
end;
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6 a' t' j$ @0 @, X1 Y$ W0 Q2循环语句
2 q5 a. x7 C8 o* Z U" j (1) from <statement sequence1>
& e/ }- s7 w' Y; g until <condition> loop6 L7 y' m7 E4 y) S
<statement sequence2>;
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(2) while <condition> loop
) w: Y) Z+ J. L <statement sequence1>;
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(3) repeat 8 Y+ t& q+ Q1 M7 a, }9 F- s
<statement sequence1>;
' q" f% j: [0 }$ _6 A1 g9 b( R until <condition>;7 X: P# b j" V+ f$ F
(4) for <condition> to <condition> loop5 i w6 ]' b& g; h& z- c. `
<statement sequence1>;, w; W2 ?8 j0 V+ ?# o* O
next;
6 _3 K3 \' l& _8 u: f# X3中断语句
- j% t, Q. ]- O4 ]& l8 r waituntil <condition> prio <integer expression>;6 b7 Y7 e+ m5 [# Z. a% ?
+ U- ~: O+ T' B' I6 z; m9 z
9 B" u7 |" o: |5 p6 F以上为常用的函数！
( r/ v1 X& Y+ ]7 S# ?7 s还有很多，如有需要我把资料发到你邮箱里
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