在字串右邊補空白
API DOC:
http://commons.apache.org/lang/api-release/index.html
class StringUtils
static java.lang.String rightPad(java.lang.String str, int size)
Source Code:
http://svn.apache.org/viewvc/commons/proper/lang/trunk/src/java/org/apache/commons/lang/
http://0rz.tw/a543S (縮)
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