jxl导出excel的时候怎么把文本类型转换为数字
jxl导出excel的时候怎么把文本类型转换为数字，知道的告诉下。
附jxl中设置数值类型的部分源码如下：
// The available built in number formats
// First describe the fairly bog standard formats
/***
* The default format. This is equivalent to a number format of '#'
*/
public static final DisplayFormat DEFAULT = new BuiltInFormat(0x0, "#");
/***
* Formatting for an integer number. This is equivalent to a DecimalFormat
* of "0"
*/
public static final DisplayFormat INTEGER = new BuiltInFormat(0x1, "0");
/***
* Formatting for a float. This formats number to two decimal places. It
* is equivalent to a DecimalFormat of "0.00"
*/
public static final DisplayFormat FLOAT = new BuiltInFormat(0x2, "0.00");
/***
* Formatting for an integer that has a thousands separator.
* Equivalent to a DecimalFormat of "#,##0"
*/
public static final DisplayFormat THOUSANDS_INTEGER =
new BuiltInFormat(0x3, "#,##0");
/***
* Formatting for a float that has a thousands separator.
* Equivalent to a DecimalFormat of "#,##0.00"
*/
public static final DisplayFormat THOUSANDS_FLOAT =
new BuiltInFormat(0x4, "#,##0.00");
/***
* Formatting for an integer which is presented in accounting format
* (ie. deficits appear in parentheses)
* Equivalent to a DecimalFormat of "$#,##0;($#,##0)"
*/
public static final DisplayFormat ACCOUNTING_INTEGER =
new BuiltInFormat(0x5, "$#,##0;($#,##0)");
/***
* As ACCOUNTING_INTEGER except that deficits appear coloured red
*/
public static final DisplayFormat ACCOUNTING_RED_INTEGER =
new BuiltInFormat(0x6, "$#,##0;($#,##0)");
/***
* Formatting for an integer which is presented in accounting format
* (ie. deficits appear in parentheses)
* Equivalent to a DecimalFormat of "$#,##0;($#,##0)"
*/
public static final DisplayFormat ACCOUNTING_FLOAT =
new BuiltInFormat(0x7, "$#,##0;($#,##0)");
/***
* As ACCOUNTING_FLOAT except that deficits appear coloured red
*/
public static final DisplayFormat ACCOUNTING_RED_FLOAT =
new BuiltInFormat(0x8, "$#,##0;($#,##0)");
/***
* Formatting for an integer presented as a percentage
* Equivalent to a DecimalFormat of "0%"
*/
public static final DisplayFormat PERCENT_INTEGER =
new BuiltInFormat(0x9, "0%");
/***
* Formatting for a float percentage
* Equivalent to a DecimalFormat "0.00%"
*/
public static final DisplayFormat PERCENT_FLOAT =
new BuiltInFormat(0xa, "0.00%");
/***
* Formatting for exponential or scientific notation
* Equivalent to a DecimalFormat "0.00E00"
*/
public static final DisplayFormat EXPONENTIAL =
new BuiltInFormat(0xb, "0.00E00");
/***
* Formatting for one digit fractions
*/
public static final DisplayFormat FRACTION_ONE_DIGIT =
new BuiltInFormat(0xc,"?/?");
/***
* Formatting for two digit fractions
*/
public static final DisplayFormat FRACTION_TWO_DIGITS =
new BuiltInFormat(0xd,"??/??");
// Now describe the more obscure formats
/***
* Equivalent to a DecimalFormat "#,##0;(#,##0)"
*/
public static final DisplayFormat FORMAT1 =
new BuiltInFormat(0x25, "#,##0;(#,##0)");
/***
* Equivalent to FORMAT1 except deficits are coloured red
*/
public static final DisplayFormat FORMAT2 =
new BuiltInFormat(0x26, "#,##0;(#,##0)");
/***
* Equivalent to DecimalFormat "#,##0.00;(#,##0.00)"
*/
public static final DisplayFormat FORMAT3 =
new BuiltInFormat(0x27, "#,##0.00;(#,##0.00)");
/***
* Equivalent to FORMAT3 except deficits are coloured red
*/
public static final DisplayFormat FORMAT4 =
new BuiltInFormat(0x28, "#,##0.00;(#,##0.00)");
/***
* Equivalent to DecimalFormat "#,##0;(#,##0)"
*/
public static final DisplayFormat FORMAT5 =
new BuiltInFormat(0x29, "#,##0;(#,##0)");
/***
* Equivalent to FORMAT5 except deficits are coloured red
*/
public static final DisplayFormat FORMAT6 =
new BuiltInFormat(0x2a, "#,##0;(#,##0)");
/***
* Equivalent to DecimalFormat "#,##0.00;(#,##0.00)"
*/
public static final DisplayFormat FORMAT7 =
new BuiltInFormat(0x2b, "#,##0.00;(#,##0.00)");
/***
* Equivalent to FORMAT7 except deficits are coloured red
*/
public static final DisplayFormat FORMAT8 =
new BuiltInFormat(0x2c, "#,##0.00;(#,##0.00)");
/***
* Equivalent to FORMAT7
*/
public static final DisplayFormat FORMAT9 =
new BuiltInFormat(0x2e, "#,##0.00;(#,##0.00)");
/***
* Equivalent to DecimalFormat "##0.0E0"
*/
public static final DisplayFormat FORMAT10 =
new BuiltInFormat(0x30, "##0.0E0");
/***
* Forces numbers to be interpreted as text
*/
public static final DisplayFormat TEXT = new BuiltInFormat(0x31, "@");
