condense 参数
" 删除左右空格,中间空格压缩至一格 result = condense( ' abc def ').
result = condense( val = ' abc def ').
" 删除所有空格
condense result no-gaps.
" 字符串根据 from 内容进行替换,from 为空不进行替换 result = condense( val = ' abc def ' from = '' ). " b替换成空格 result = condense( val = ' abc def ' from = 'b' ).
" del 为空,不删除前后字符串, result = condense( val = `XXabcXXXdefXX` del = '' from = 'X' to = 'X' ).
result = condense( val = `XXabcXXXdefXX` del = 'X' from = 'X' to = 'X' ).