不知道怎样可以带回参数和返回值等信息，但是我知道为啥不显示了。
user()和date()能显示内容，是因为这两个方法在其有效的作用域执行。
而关于Method的方法（如methodName()、methodParameters()、methodReturnType()）没有起作用是因为你在方法外执行的mc快捷操作，这些方法的作用域是在方法内。
看下methodName()方法的解释：Returns the name of the embracing method (where the template is expanded).返回起作用的方法的名称。
| This is a built-in template. It contains a code fragment that can be included into file templates (Templates tab) with the help of the #parsedirective. The template is editable. Along with static text, code and comments, you can also use predefined variables that will then be expanded like macros into the corresponding values. |
| Predefined variables will take the following values: | ||
| ${PACKAGE_NAME} | name of the package in which the new file is created | |
| ${USER} | current user system login name | |
| ${DATE} | current system date | |
| ${TIME} | current system time | |
| ${YEAR} | current year | |
| ${MONTH} | current month | |
| ${MONTH_NAME_SHORT} | first 3 letters of the current month name. Example: Jan, Feb, etc. | |
| ${MONTH_NAME_FULL} | full name of the current month. Example: January, February, etc. | |
| ${DAY} | current day of the month | |
| ${HOUR} | current hour | |
| ${MINUTE} | current minute | |
| ${PROJECT_NAME} | the name of the current project |
注意点二：多个参数换行，可以使用 groovyScript
其中脚本值：
1 |
groovyScript("def result=''; def params=\"${_1}\".replaceAll('[\\\\[|\\\\]|\\\\s]', '').split(',').toList(); for(i = 0; i < params.size(); i++) {result+=' * @param ' + params[i] + ((i < params.size() - 1) ? '\\n\\b' : '')}; return result", methodParameters())
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