函数boolean containsAny(String str, String searchChars) 判断str字符串中是否包含searchChars字符串
String khh_str = "";
if(list.size()>0){
khh_str = "('";
for (int i = 0; i < list.size(); i++) {
String now_khh = list.get(i).getKhh().trim();
if(!khh_str.contains(now_khh)){
if(i>0){
khh_str += "','";
}
khh_str += now_khh;
}
}
khh_str += "')";
}