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标题: 请教一个变量长度的问题（Base) [打印本页]

作者: shiyiming 时间: 2007-2-13 01:47
标题: 请教一个变量长度的问题（Base)
三个变量 address (长32）city (长15) zip(长5）
源文件如下：

65 elm drive.....................raleigh.........27612
11 sun drive.....................durham.......27612
712 hartwick street...........chapel hill.....27514

问题：
1，newaddress=trim(address);
newaddress的length是多少？是32吗？还是12？

note:newaddress is a new created variable and no length specification before this assignment statement.

2，newaddress=trim(address)||','||trim(city)||','||zip;
还是问newaddress的length是多少？

多谢！

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