---

1.闭包和装饰器：函数里return就是闭包

如下打印第一行是：我在~。

2.解析eeprom：如下是二进制文件，C8是一个字节

如下5x4+4+2x4=32。

# tlv_tool.py
#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
import sys
import struct
import os
import time
import json
import subprocess
import binascii
from os.path import dirname, abspath# a.py
# import json, os
# print(json.__file__) # /usr/lib/python3.8/json/__init__.py
# print(os.path.abspath(__file__)) # /home/y/utool/a.py
# print(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) # /home/ysys.path.append(dirname(dirname(abspath(__file__))))  #当前tlv_tool.py文件所在绝对路径的文件夹的上级文件夹
Project_path = dirname(abspath(__file__))  #获取所在路径文件夹
Conf_path = '{}/tlv_conf.json'.format(Project_path)def ParseJson(filename=Conf_path):with open(filename, 'r') as f:jdata = json.load(f)return jdata
tlv_json = ParseJson()
tlv_reg_path = tlv_json['tlv_reg_path']
tlv_eeprom_path = tlv_json['tlv_eeprom_path']def run_command(cmd):proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)out, err = proc.communicate()if err and proc.returncode != 0:return errreturn out.decode()# def write_reg(fpath, reg, data):
#     if os.getcwd() != fpath:
#         if os.path.exists(fpath) == False or os.chdir(fpath) == False:
#             return 'file Not exists or file Not accessible'
#     if run_command('echo {} {} > setreg'.format(reg, data)) != 0:
#         return 'write fail'
#     return 0# def read_reg(fpath, reg):
#     if os.getcwd() != fpath:
#         if os.path.exists(fpath) == False or os.chdir(fpath) == False:
#             return 'file Not exists or file Not accessible'
#     if run_command('echo {} > getreg'.format(reg)) != '':
#         return 'echo reg fail'
#     return run_command('cat getreg').strip()def crc2hex(crc):return '0x{:0>8X}'.format(binascii.crc32(crc))    #取crc32的八位数据 %x返回16进制，摘要算法def unlock_tlv_eeprom(path,reg,data = '0x0'):   # unlock_tlv_eeprom(tlv_reg_path,'0x06')  #0x06寄存器eeprom写保护if os.getcwd() != path:if os.path.exists(path) == False or os.chdir(path) == False:return 'file Not exists or file Not accessible'if run_command('echo {} {} > setreg'.format(reg, data)) != 0:return 'write fail'if run_command('echo {} > getreg'.format(reg)) != '':return 'echo reg fail'output =  run_command('cat getreg').strip()print("set reg {} value: {}".format(reg,output))if output == data:print('Unlock tlv eeprom success!')  # 0x0return Trueprint('Unlock tlv eeprom fail!')return Falsedef tlv_read_eeprom(path,length=None,offset=None):  # tlv_read_eeprom(tlv_eeprom_path,length)with open('{}eeprom'.format(path),mode = 'rb') as f:return f.read(length)def tlv_read_length():with open('{}eeprom'.format(tlv_eeprom_path),mode = 'rb') as f:'''tlv_header_length = char[8] + u8 + u16'''tlv_header_length = 11tlv_signature , tlv_version , tlv_totallen = struct.unpack("!8sBH", f.read(tlv_header_length))  #读11字节return tlv_header_length + tlv_totallendef tlv_dump(args):  #读出eeprom信息写到tlv_dump.bin文件length = tlv_read_length()data = tlv_read_eeprom(tlv_eeprom_path,length)try:file_name = args[2]except IndexError:file_name = 'tlv_dump.bin'with open(file_name,mode = 'wb') as f:# print(data)# print(len(data))f.write(data) f.flush()    print("Dump tlv data finish!")tlv_type_dirt = {0x21 : 'Product Name', 0x22 : 'Part Number',   0x23 : 'Serial Number', 0x24 : 'Base MAC Address', 0x25 : 'Manufacture Date',0x26 : 'Device Version', 0x27 : 'Label Revision', 0x28 : 'Platform Name', 0x29 : 'ONIE Version', 0x2A : 'MAC Address Size', 0x2B : 'Manufacturer', 0x2C : 'Country Code',0x2D : 'Vendor Name',0x2E : 'Diag Version',0x2F : 'Service Tag',0xFD : 'Vendor Extension',0xFE : 'CRC-32'
}def tlv_write(args):with open(args[2],mode = 'rb') as f:data = f.read()if unlock_tlv_eeprom(tlv_reg_path,'0x06'):with open('{}eeprom'.format(tlv_eeprom_path),mode = 'rb+') as f:f.write(data)f.flush()print("Write tlv data finish!")def tlv_read(args):if len(args) == 3 and '.bin' in args[2]:path = args[2]else:path = '{}eeprom'.format(tlv_eeprom_path)with open(path,mode = 'rb') as f:'''tlv_header_length = char[8] + u8 + u16'''tlv_header_length = 11tlv_signature , tlv_version , tlv_totallen = struct.unpack("!8sBH", f.read(tlv_header_length))print("TlvInfo Header:")print("    Id String    : {}".format(tlv_signature.decode().strip()))print("    Version      : {}".format(tlv_version))print("    Total Length : {}".format(tlv_totallen))'''data_header_length = u8 + u8'''print("TLV Name         Code Len  Value")print("--------------------------------")data_header_length = 2length_cnt = 0stored_crc = Nonewhile length_cnt < tlv_totallen :data_type , data_length = struct.unpack("!BB", f.read(data_header_length))length_cnt += data_header_length + data_lengthif (data_type in tlv_type_dirt.keys()):passelse:continueif tlv_type_dirt[data_type] == 'Base MAC Address':if data_length == 6:mac0,mac1,mac2,mac3,mac4,mac5 = struct.unpack('!BBBBBB', f.read(data_length))data = "{:0>2X}:{:0>2X}:{:0>2X}:{:0>2X}:{:0>2X}:{:0>2X}".format(mac0,mac1,mac2,mac3,mac4,mac5)else:print('Base MAC Address Error Length {}!'.format(data_length))exitelif tlv_type_dirt[data_type] == 'Device Version':if data_length == 1:data = struct.unpack('!B', f.read(data_length))data = data[0]else:print('Device Version Error Length {}!'.format(data_length))exitelif tlv_type_dirt[data_type] == 'MAC Address Size':if data_length == 2:byte0,byte1 = struct.unpack('!BB', f.read(data_length))data = (byte0 << 8) | byte1else:print('MAC Address Size Error Length {}!'.format(data_length))exitelif tlv_type_dirt[data_type] == 'Vendor Extension':if data_length > 0:vendor_cmd = '!'for index in range(data_length):vendor_cmd += "B"byte_tuple = struct.unpack(vendor_cmd, f.read(data_length))data = ''for byte in byte_tuple:data += '0x{:0>2X} '.format(byte)else:data = 'NULL'elif tlv_type_dirt[data_type] == 'CRC-32':if data_length == 4:crc0,crc1,crc2,crc3 = struct.unpack('!BBBB', f.read(data_length))data = "0x{:0>2X}{:0>2X}{:0>2X}{:0>2X}".format(crc0,crc1,crc2,crc3)stored_crc = eval(data)else:print('CRC Error Length {}!'.format(data_length))exitelse:if data_length > 0:data = struct.unpack('!{}s'.format(data_length), f.read(data_length))data = data[0].decode().strip()else:# data = None# data = ''data = 'NULL'print("{:<16} 0x{:x} {:>3} : {}".format(tlv_type_dirt[data_type],data_type,data_length,data))if stored_crc != None:f.seek(0,0)crc_data = f.read(tlv_header_length + tlv_totallen - 4)# print(crc_data)calc_crc = eval(crc2hex(crc_data))if calc_crc == stored_crc:print('Checksum is valid')else:print('Checksum is invalid')else:print('No Checksum Data')def tlv_update(args):try:file_name = args[2]except IndexError:file_name = Nonetlv_data = tlv_json['tlv_data']'''tlv_header_length = char[8] + u8 + u16'''tlv_signature = tlv_json['tlv_signature'].encode()if len(tlv_signature) > 8:print('tlv signature length out off range !!!')exitwhile len(tlv_signature) < 8:tlv_signature += b'\x00'tlv_version = tlv_json['tlv_version'].to_bytes(1,'big')tlv_totallen = 0x00data_list = []      #一般都在for上面定义一个空列表for item in tlv_type_dirt:title = tlv_type_dirt[item].replace(' ','_')if (title in tlv_data.keys()):passelse:if tlv_type_dirt[item] == 'Manufacture Date':passelse:continueif tlv_type_dirt[item] == 'Base MAC Address':mac_list = tlv_data[title].split(':')mac_code = b''for mac_item in mac_list:mac_code += eval('0x{}'.format(mac_item)).to_bytes(1,'big')data = mac_codeelif tlv_type_dirt[item] == 'Manufacture Date':data = time.strftime("%d-%m-%Y %H:%M:%S", time.localtime()).encode()elif tlv_type_dirt[item] == 'Device Version':data = tlv_data[title].to_bytes(1,'big')elif tlv_type_dirt[item] == 'MAC Address Size':data = tlv_data[title].to_bytes(2,'big')elif tlv_type_dirt[item] == 'Vendor Extension':vendor_list = tlv_data[title].split()vendor_code = b''for vendor_item in vendor_list:vendor_code += eval(vendor_item).to_bytes(1,'big')data = vendor_codeelse:data = tlv_data[title]if data != 'None' and data != '':data = data.encode()else:data = b''type_code = item.to_bytes(1,'big')len_code = len(data).to_bytes(1,'big')data_str = type_code + len_code + datadata_list.append(data_str)  ##################for item in data_list:tlv_totallen += len(item)'''tlv_totallen add crc data str length'''tlv_totallen = (tlv_totallen + 6).to_bytes(2,'big')tlv_final_data = tlv_signature + tlv_version + tlv_totallenfor data_item in data_list:tlv_final_data += data_item'''add crc data header and length'''tlv_final_data += (0xFE).to_bytes(1,'big') + (0x04).to_bytes(1,'big')'''add crc data'''crc_data = eval(crc2hex(tlv_final_data)).to_bytes(4,'big')tlv_final_data += crc_data# print(tlv_final_data)if file_name == None:if unlock_tlv_eeprom(tlv_reg_path,'0x84'):with open('{}eeprom'.format(tlv_eeprom_path),mode = 'rb+') as f:f.write(tlv_final_data)f.flush()print("update tlv data finish!")else:with open(file_name,mode = 'wb') as f:f.write(tlv_final_data) f.flush()print("update tlv data bin finish!")def read_help(args):print('usage: {} [OPTIONS]'.format(args[0]))print('Options are:')print('     -w      --write      write tlv bin to eeprom')print('     -d      --dump       dump tlv bin from eeprom')print('     -r      --read       read  tlv data from eeprom')print('     -u      --update     update tlv data to eeprom or create new tlv bin')print('     -h      --help       Display this help text and exit')print('Example:')print('             --write  <bin name>')print('             --dump   <bin name>')print('             --update <bin name>')print('                  just create tlv bin , but not update tlv data')print('             --update')print('                  just update tlv data , but not create tlv bin')print('             --read')op = {'--write'  : tlv_write,'--dump'   : tlv_dump,'--read'   : tlv_read,'--update' : tlv_update,'--help'   : read_help,'-w'       : tlv_write,'-d'       : tlv_dump,'-r'       : tlv_read,'-u'       : tlv_update,'-h'       : read_help,
}if __name__ == '__main__':if len(sys.argv) == 1:read_help(sys.argv)else:        op.get(sys.argv[1], read_help)(sys.argv)

// tlv_conf.json
{"tlv_reg_path" : "/sys/bus/platform/devices/hq_switch/cpld_lc/","tlv_eeprom_path" : "/sys/bus/i2c/devices/0-0056/","tlv_signature": "TlvInfo","tlv_version": 1, "tlv_data": {"Product_Name":     "ZSR551", "Part_Number":      "ZSR551",   "Serial_Number":    "SN number", "Base_MAC_Address": "00:E0:EC:00:00:00", "Device_Version":   1, "Label_Revision":   "ZSR551", "Platform_Name":    "x86_64-ZSR551-r0", "ONIE_Version":     "0.0.1", "MAC_Address_Size": 260, "Manufacturer":     "None", "Country_Code":     "CHN","Vendor_Name":      "None","Diag_Version":     "1.4.0","Service_Tag":      "LB","Vendor_Extension": "0x00 0x00 0x00"}
}

3.json/configparser/optparse：json.dumps（将字典转化为字符串，将json信息写进文件），json.loads（将字符串转化为字典）

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import json# dict1 = {"age": "12"}                                                      # <type 'dict'>
# json_info = json.dumps(dict1)     
# print("通过json.dumps()函数处理：json_info的类型："+str(type(json_info)))  # <type 'str'>
# print(json_info)                                                           # {"age": "12"}json_info = '{"age": "12"}' 									    # <type 'str'>
dict1 = json.loads(json_info)    
print("通过json.loads()函数处理：dict1的类型："+str(type(dict1)))   # <type 'dict'>
print(dict1)         											    # {u'age': u'12'}  # u：unicode中文显示# json_info = "{'age': '12'}"
# file = open('1.json','w') 
# json.dump(json_info,file)   #生成1.json里面内容为 "{'age': '12'}"

win下.ini多。

# coding=UTF-8<code>
import os
import jsondef d():info_list = ['a','b','c','d','e','f','g','h','i']split_list = [info_list[i:i+4] for i in range(0, len(info_list), 4)]print(split_list)  # [['a', 'b', 'c', 'd'], ['e', 'f', 'g', 'h'], ['i']]x = set('runoob')print(x)   # set(['b', 'r', 'u', 'o', 'n'])print(len(x)) # 5i2clist={'2':'port 1 SFP','3':'port 2 SFP','4':'port 3 SFP','5':'port 4 SFP'
}
def e():for i in i2clist:print(i) # 3 2 5 4def search_dir_by_name(name, dir):result = []try:files = os.listdir(dir)for file in files:if name in file:result.append(os.path.join(dir, file))except Exception as e:passreturn resultdir = "/sys/block/"
spect = "sd"
ssdpath = []
# /sys/block/sd*   remove=1  sda  fdisk | grep sda 有/dev/sda , 没有的话只有sda, 拼接/dev/sda
if __name__ == '__main__':result = search_dir_by_name(spect, dir)#print(result)    #['/sys/block/sdd', '/sys/block/sdb', '/sys/block/sde', '/sys/block/sdc', '/sys/block/sda']for item in result:with open(os.path.join(item, "removable"), 'r') as fd:#print(item)  # /sys/block/sde#print(os.path.join(item, "removable"))  # /sys/block/sde/removable#print(fd.read()) #0或1  # SyntaxError: Non-ASCII character '\xe6' 加#coding=UTF-8<code>value = fd.read()if value.strip() == "0":  # found ssd  #去除1ssd_disk = "/dev/" + os.path.basename(item)  #ssd_disk：/dev/sda .../dev/sddssdpath.append(ssd_disk)

4.map：[]列表 , ()元组 , {}集合 , {a:b}字典。for else中break后不走else

python中None，False，空字符串""，0，空列表[]，空字典{}，空元组()都相当于False。





cpu和switch连着，中间有一个nic卡（mellanox或e810），switch连着外面的光模块。fpga一端连着cpu，一端连着switch，fpga的eeprom存指令控制switch。

前面板前36个是loopback（光模块插DAC线或光纤，lookpack内部TX和RX接在一起），37-64网口是fpga和nic卡, 61和62->mellax 100G(100G无4个lan)， e810 25G。traffic：外部loocpack，cpu发包，cpu收包。
fpga 100g : cpu - fpga - switch - loopback - switch - fpga。
fpga 25g : fpga - switch。layout只fpga，1个fpga有8个pcie设备（pf），1个pcie设备有16个通道。

如下25G有4个lan。



def stop_all(self, bdf_lst, bar, port, channel) 。如下self. 默认第一个参数有self。

5.walk/split/getattr/bin/lspci/ethtool：bin转为二进制0b…，re.compile

# b.py
import os
import json
import sysdef seek_file(path, name):fullpath = Nonefor root, dirs, files in os.walk(path):if name in files:fullpath = '{0}/{1}'.format(root, name)breakreturn fullpathif len(sys.argv)==3:print(sys.argv[1],sys.argv[2])path=seek_file(sys.argv[1],sys.argv[2])print(path)
else:print(len(sys.argv),'err')root@bmc-oob:~# python b.py /sys/bus/i2c/devices/26-0048 in3_input
/sys/bus/i2c/devices/26-0048 in3_input
/sys/bus/i2c/devices/26-0048/hwmon/hwmon4/in3_input

def get_baseboard_sku():try:proc = subprocess.Popen([IPMITOOL_PATH, "raw", "0x3a", "0x10", "9", "0x1a", "1", "0x12"],stdout=subprocess.PIPE,shell=False,stderr=subprocess.STDOUT) # proc返回20stdout = proc.communicate()[0]   # b' 20\n'proc.wait()sku_str = stdout.decode()  # 20sku_bin = bin(int("0x" + sku_str.strip(), 16))[-5:]    # 0x20（十六进制 ）= 32（十进制 ），bin(32) = 0b100000sku_dict = {"00001" : "ns35x","00010" : "ns34x","00100" : "ns33x","01000" : "ns32x","10000" : "ns31x"}sku = sku_dict.get(sku_bin, "")except OSError as e:raise OSError("Cannot detect platform")return sku

output = remote.command("sol.sh", time=10, expect_list=['-----------------------------------'])
output1 = remote.command('\x15\x12\x14\x33', current=True, expect_list=expect_list)
output2 = remote.command('\r\n', current=True, expect_list=expect_list)
if "bmc-oob" in output1 or "bmc-oob" in output2:emmc_info_cmd = "mmc cid read /sys/block/mmcblk0/device"，
emmc_size_cmd = "cat /sys/block/mmcblk0/size"def bmc_ping_cpu_test(self, also_print_console=False):count = 5ping_cmd = "ping %s -c %d | grep received" % (self.bmc_login["ip"], count)status, output = run_command(ping_cmd)self.logger.log_info(output, also_print_console)if output.find(" 0% packet loss") > 0:ret = E.OKelse:self.fail_reason.append("cpu ping server lost packages")ret = E.EMGMT11002return retbmc_ddr_name_cmd = "cat /proc/meminfo | awk '{print $1}'"
bmc_emmc_show_cmd = "fdisk -l | grep /dev/mmcblk0"
bmc_emmc_stress_test_cmd = "touch /var/log/emmc.test ; \echo '==emmc read stress test==' ; \(time dd if=/dev/mmcblk0 of=/dev/null bs=1M count=10 && sync) >> /var/log/emmc.log ; echo ' ' ; \echo '==emmc write stress test==' ; \(time dd if=/dev/zero of=/var/log/emmc.test bs=1M count=10 && sync) >> /var/log/emmc.log ; \rm /var/log/emmc.test"def str_to_hex(self, s):    # 把字符串转化为对应的16进制串return ' '.join([hex(ord(c)).replace('0x', '') for c in s])def hex_to_str(self, s):return ''.join([chr(i) for i in [int(b, 16) for b in s.split(' ')]])# def str2bin(s):   # bin二进制
#     return ' '.join([bin(ord(c)).replace('0b', '') for c in s])# def bin2str(s):
#     return ''.join([chr(i) for i in [int(b, 2) for b in s.split(' ')]])def replace_char(self, string, char, index):string = list(string)string[index] = charreturn ''.join(string)def modify_profile(self, also_print_console=True):ret, Before_mac = self.get_mac_address_from_tlv_eeprom(also_print_console)if ret != E.OK:return retAfter_mac = Before_mac    # 00E0EC000000for i in range(11, -1, -1): # 从11到0 (竖着打印) , 12个(相当于索引)last = After_mac[i]  # 从右向左单个遍历if last == "F":After_mac = self.replace_char(After_mac, "0", i)continueelse:last = self.str_to_hex(last)  # 字符0转为ascii码48，再转为十六进制0x30即30last = int(last) + int(self.offset["offset"]["bmc_offset"])last = str(last)last = self.hex_to_str(last)  # 函数里有split，所以last必须为str类型After_mac = self.replace_char(After_mac, last, i) # After_mac = "EFFFFFFFFFFF" , 因为下行break，只打印出一行F00000000000breaksign = 0os.chdir(self.hwsku_path)with open('fru.ini', 'r') as f:lines = []for line in f.readlines():if line != '\n':lines.append(line)f.close()with open('fru.ini', 'w') as f:for line in lines:if "bmc_base_mac_address=" in line:if sign == 1:f.write('%s' % line)continueline = "bmc_base_mac_address="+After_macf.write('%s\n' %line)sign = 1else:f.write('%s' %line)return After_mac

"gpio":{"gpio504":{           			    # cpu的gpio504"pin":"GPIO8",                    # cpld的gpio8"net":"CTC7132_CPLD_JTAG_EN"      # cpld的gpio8的备注作用：使能},"gpio505":{"pin":"GPIO9","net":"CTC7132_CPLD_JTAG_TCK_R"    # 时钟},"gpio506":{"pin":"GPIO10","net":"CTC7132_CPLD_JTAG_TMS_R"},"gpio507":{"pin":"GPIO11","net":"CTC7132_CPLD_JTAG_TDI_R"    # 数据输入},"gpio508":{"pin":"GPIO12","net":"CTC7132_CPLD_JTAG_TDO"      # 数据输出}
}# root@localhost:~# lspci -nnn -s 07:00.0    （07:00.0是fpga的bus号，fpga是pcie设备）
# 07:00.0 Memory controller [0580]: Xilinx Corporation Device [10ee:7021]# root@localhost:~# lspci -vvv -s 07:00.0    （devmem 0xfb800000 8）
# Region 0: Memory at fb800000 (32-bit, non-prefetchable) [size=4M]"pcie":{"X552":{ ######### device"width":"x1","speed":"2.5GT/s","num":4}
},def _get_bus_dev_func(self, device):  ######### device就是X552bus_dev_func = []ret, out = run_command("lspci | grep {}".format(device))for line in out.splitlines():if re.search("[0-9a-f]{2}\:[0-9a-f]{2}\.[0-9a-f]{1}", line):bus_dev_func.append(re.findall("[0-9a-f]{2}\:[0-9a-f]{2}\.[0-9a-f]{1}", line)[0])else:bus_dev_func.append(None)return bus_dev_funcdef _get_device_conf(self, busid):  ######### 遍历bus_dev_func中busidret, output = run_command("lspci -s {} -vvv | grep -i LnkSta | grep Speed".format(busid))if ret or output == '':return '', ''else:speed = output.strip(" \t\n").split(',')[0].split('Speed')[1].strip()width = output.strip(" \t\n").split(',')[1].split('Width')[1].strip()return speed, width

ethtool 网卡名 ：查看网卡速率，全双工
ethtool -s ethX [speed 10|100|1000] [duplex half|full]  [autoneg on|off]        
设置网口速率     10/100/1000M      设置网口半/全双工    设置网口是否自协商test_help_list = ["Please check if psu status is correct","1.correct","2.wrong",]
for item in self.test_help_list:self.logger.log_info(item, True)
choice = str(input("Please input 1 or 2: "))
value = re.compile(r'^[-+]?[0-9]+$')
result = value.match(choice)
if result:if int(choice) == 1:elif int(choice) == 2:else:def search_speed(self, speed):time.sleep(5)sta, out = run_command("ethtool eth0")pattern = "\s+Speed: (.*)\s+"result = re.findall(pattern, out)[0]if result != speed:return Falseelse:return Truedef rj45_led_test(self, also_print_console=False):ret = E.EFAILself.logger.log_info("[RJ45 LED BLINK TEST]:", also_print_console)speed_list = ["10", "100", "1000"]for speed in speed_list:cmd = "ethtool -s eth0 autoneg off speed {} duplex full"if speed == "1000":cmd = "ethtool -s eth0 autoneg on speed {} duplex full".format(speed)else:cmd = "ethtool -s eth0 autoneg off speed {} duplex full".format(speed)run_command(cmd)if not self.search_speed("{}Mb/s".format(speed)):ret = E.EFAILself.fail_reason("set eth0 speed fail.")self.logger.log_err("FAIL.", also_print_console)return retself.logger.log_info("current eth0 speed is {}Mb/s, start ping test...".format(speed), also_print_console)run_command("ping -c 20 -I eth0 {}".format(self.external_ip))choice = input("please confirm rj45 led whether blink(1 is pass, 2 is fail):")if int(choice) == 2:ret = E.ELED14010self.fail_reason.append("rj45 led fault")self.logger.log_err("FAIL.", also_print_console)return retelif int(choice) == 1:continue