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发表于 2012-11-13 08:48:12
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1判断语句( X% u8 s! E9 D: w+ X% I$ k
if <condition> then* z9 N& A2 I6 H1 d
<statement sequence1>;
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<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
# Z$ x0 u% N! r( c% q z1 S. Y inspect <expression>4 R3 k& R& W6 Y
when <constant_list> then8 z/ ?! I& \' w- }6 c" ]
<statement sequence1>;
" y- T C3 ], j z2 B( B when <constant_list> then
$ m" c" c a& }# U' y4 R <statement sequence2>;
0 @: S% u# k4 s! ]& S ...
5 G2 {; B. c3 ]1 f! n+ H. v else( I4 M% i. u/ P: |, w# r
<statement sequence3>;
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3 {/ ^# ~; y- [( x" R1 _: C2循环语句
- C7 ~& |7 W0 J; j9 G (1) from <statement sequence1>
* q4 ~, M3 \, m5 G8 V- h( [ until <condition> loop! ~/ u8 R/ z x# d( X
<statement sequence2>;
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(2) while <condition> loop1 L4 a7 h& `# w# S: c5 `2 `% W) d6 A" Z
<statement sequence1>;
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(3) repeat 4 R" c$ k0 Y- q8 o$ j
<statement sequence1>;7 p$ U V$ k2 G( ]; z
until <condition>;
2 }' L7 S) I; `: h (4) for <condition> to <condition> loop
) W2 X2 V; Z) | t2 s <statement sequence1>;5 }# G1 o8 P: L1 H2 |
next;
! R. h4 p: ?/ j& \6 B9 G8 f; B2 x3中断语句1 C% j9 [! C* T% G' ^8 b! u
waituntil <condition> prio <integer expression>;, o& z# v* k( W: M: Q( I
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以上为常用的函数！# [% T% C2 y8 \( T& q' q' q( A" ^5 Z- A
还有很多，如有需要我把资料发到你邮箱里 R3 E# o$ |! w% q6 D' \* v
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