JS递归将字符串中的字符替换为目标字符

//repStr:原字符串--rgExp:被替换的字符--replaceText：去替换的字符 ??function?replaceString(repStr,?rgExp,?replaceText){ ??????var?str?=?repStr.replace(rgExp,?replaceText) ??????if?(?str.indexOf(rgExp)?!=?-1?){ ??????????str?=?replaceString(str,?rgExp,?replaceText); ??????}　 ??????return?str; ??}??