主菜单进入“选项”，选择“键盘/鼠标”，激活“允许开发者控制台（Allow Developers
Console）”，在游戏中按下“~”开启控制台，输入“Sv_Cheats 1”按下回车键激活作弊码，在接着输入map+地图名[如map
c1m1,注意map后面有个空格在输入地图名如最后部分]然后开始游戏输入以下代码：
操作方法
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01
sv_infinite_ammo 1 无限弹药 give health 满血100 give ammo 弹药 打开sv_cheats 1启动秘籍 获得榴弹发射器 give weapon_grenade_launcher 获得燃烧子弹升级 upgrade_add Incendiary_ammo 获得爆炸子弹升级 upgrade_add explosive_ammo 获得激光瞄准升级
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02
upgrade_add laser_sight 药包 give first_aid_kit 连喷 give autoshotgun 电击器 give defibrillator 油桶 give gascan 满血 give health 狙击 give hunting_rifle 砍刀 give machete 火瓶 give molotov 氧气筒
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03
give oxygentank 药丸 give pain_pills 手榴弹 give pipe_bomb M16 give rifle AK give rifle_ak47 三发枪 give rifle_desert 连喷2 give shotgun_spas 狙击2 give sniper_military 警棍 give tonfa 胆汁 give vomitjar
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04
z_spawn hunter(创造Hunter) z_spawn smoker(创造smoker) z_spawn boomer (创造boomer) z_spawn tank (创造tank) z_spawn witch(创造witch) z_spawn charger z_spawn jockey z_spawn spitter
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05
melee_range (预设为70)数值越高打越远 如果嫌电脑队友碍事，可以打sb_dont_shoot 1指令 把claw range调高，就可以隔空伤人 interval调成0.1 北斗百烈拳) map l4d_hospital02_subway.bsp (2：地铁) map l4d_hospital03_sewers.bsp (3：下水道) map l4d_hospital04_interior.bsp (4：医院) map l4d_hospital05_rooftop.bsp (5：屋顶终局)
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06
死亡丧钟 map l4d_smalltown01_caves.bsp (1：收费公路) map l4d_smalltown02_drainage.bsp (2：水沟) map l4d_smalltown03_ranchhouse.bsp (3：教堂) map l4d_smalltown04_mainstreet.bsp (4：小镇) map l4d_smalltown05_houseboat.bsp (5：船库终局)
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07
静寂时分 map l4d_airport01_greenhouse.bsp (1：花房) map l4d_airport02_offices.bsp (2：起重机) map l4d_airport03_garage.bsp (3：建筑工地) map l4d_airport04_terminal.bsp (4：终点) map l4d_airport05_runway.bsp (5：跑道终局)
