获取指定字符前面后后面的字符串

JS 写法

/*** 获取指定字符后的字符串* @param obj* @returns {string}*/function getAfterString(obj){var index=obj.lastIndexOf("_");obj=obj.substring(index+1,obj.length);return obj;
}
/*** 获取指定字符前的字符串* @param obj* @returns {string}*/function getBeforeString(obj){var index=obj.indexOf("_");obj=obj.substring(0,index);return obj;
}

Java 写法

/*** 获取指定字符后的字符串* @param str* @returns {string}*/private String getAfterString(String str){int index = str.lastIndexOf("_");str = str.substring(index + 1, str.length());return  str;}/*** 获取指定字符前的字符串* @param str* @returns {string}*/private String getBeforeString(String str){int index = str.indexOf("_");str = str.substring(0, index);return  str;}