public static File writeUtf8String(String content, String path) throws IORuntimeException {
		return writeString(content, path, CharsetUtil.CHARSET_UTF_8);
	}
public static File writeUtf8String ( String content , String path ) throws IORuntimeException { return writeString ( content , path , CharsetUtil . CHARSET_UTF_8 ) ; }
将String写入文件，覆盖模式，字符集为UTF-8

@param content 写入的内容
@param path 文件路径
@return 写入的文件
@throws IORuntimeException IO异常