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发表于 2012-11-13 08:48:12
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1判断语句. @5 V# F1 _7 d1 M3 b" b4 D
if <condition> then: E: g: W6 _; y# n, E. C
<statement sequence1>;
# W& S6 k: v+ f" P D. S elseif <condition> then
+ z) p. A# M: C% J' v# Q* Z: R3 R <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
. t1 {7 }0 R, e+ ~ inspect <expression>
& Z; D, ?- o: Q when <constant_list> then+ N0 _1 y3 l4 ]# \* L, R) l1 \0 u5 E
<statement sequence1>;
1 }* y. [2 T. d; Y' A5 s n5 P8 S when <constant_list> then. y- n% n1 h4 k; K- U5 o0 T
<statement sequence2>;
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else
: n" R$ p+ @( {6 A7 M# z. } <statement sequence3>;
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2循环语句4 h5 i8 u) F- q9 R" t5 V4 A8 |6 o
(1) from <statement sequence1>6 I+ Z1 \- ^' d2 V' ?8 B
until <condition> loop
9 A# s8 S% q6 F/ q- ? <statement sequence2>;: W' F, H# y8 J* v. Y6 P4 u
end;# h, B2 s* K2 f2 ]
(2) while <condition> loop
0 t9 D2 |% N' F- V9 B$ Z <statement sequence1>;
+ ?6 N2 R5 u" Z end;. M" h9 ^! E* M; x- ~
(3) repeat , t3 D8 `6 G% L
<statement sequence1>;) G& W) `6 W& M# ]- |) `
until <condition>;
; ~" m7 I: T9 s' |5 \) X- W (4) for <condition> to <condition> loop6 u# u, p& k% s0 X- N
<statement sequence1>;' F; s! |! z, _4 K ?
next;7 H1 F% Z, T7 ]8 d' B
3中断语句
" }- W' Y9 h, \ waituntil <condition> prio <integer expression>;
! z- e/ \" {* S1 W$ x* P. h' v. I2 u3 m; h+ F& z3 ^
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以上为常用的函数！
) c4 H( e4 z5 Y1 b还有很多，如有需要我把资料发到你邮箱里
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