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发表于 2012-11-13 08:48:12
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1判断语句
) H! k+ z; E0 z* _; C9 l( e if <condition> then7 B$ D9 Q" ~% L4 h! s/ v4 |
<statement sequence1>;6 T4 s b: j( q5 s- C/ T
elseif <condition> then9 l- I& O. P0 F1 G9 K3 k% s
<statement sequence2>;
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<statement sequence3>;! O& a* V0 D, Q5 A/ k+ N+ J
end;
" H' D: I$ l- L2 w9 z如果分支比较多，用：
+ y* |3 g1 E: m/ {7 ~% \4 y inspect <expression>; w. |) t% F8 O8 q& S
when <constant_list> then$ S3 a- t! {% ^5 O# J
<statement sequence1>;8 s2 J5 N0 s/ Z3 |
when <constant_list> then9 |8 V- t$ s/ i$ C
<statement sequence2>;
# s. `/ }6 h7 Y% f+ S, j ...
6 T3 `3 }/ m7 V/ S5 Q6 ^0 g else
* X: W5 K1 L/ Q <statement sequence3>;+ H) F: r; o7 T4 R- R+ U' J
end;. Y1 i. @ O2 _' ]9 Y$ M) p
- b2 n3 G' u w. d* M2循环语句
- t2 a" O$ f2 Q/ X Q+ e (1) from <statement sequence1>
, l/ [9 s# s0 U$ e }* }# a until <condition> loop; s0 k8 G* Y, Q
<statement sequence2>;( a: F9 X& O; d
end;
3 i- |! |6 R4 `1 @" r! p' d/ B (2) while <condition> loop; c2 }8 ^4 Z0 O( r& }2 h" E
<statement sequence1>;5 F) s$ Z- ~' I; G/ W5 E" K
end;
. o2 \+ L" k. M9 z x (3) repeat # U# o# ]0 Q( s8 _- |
<statement sequence1>;) H, X, W2 V4 Z4 v4 y/ E
until <condition>;
$ _; o0 ]$ [4 z3 K. c (4) for <condition> to <condition> loop$ X/ n1 m, \7 Y; ^& a. D8 B
<statement sequence1>;
9 b1 |1 X. ^3 l$ W next;5 a ?) }# f, b S
3中断语句9 F; i \: w6 Y l" o
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 u, C1 G( n# I) H$ k" N' A
还有很多，如有需要我把资料发到你邮箱里 - W/ F, }# a7 D( G
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