/*************************************************************名稱：strcountinstring功能：計算一個字元在一個字串中出現的次數引數：sourcestr，源字串；findstr，需要查詢的字串；返回：findcount，統計次數*************************************************************/function strcountinstring(sourcestr,findstr) {sourcestr=new String(sourcestr);findstr=new String(findstr);var findcount=0;var startposition=0;while (startposition<sourcestr.length) {searchstr=sourcestr.indexOf(findstr,startposition);if (searchstr!=-1) {findcount=findcount+1;startposition=searchstr+findstr.length;} else {break;}}return(findcount);}