先要下载一个你需要的金手指软件，PSP或者PPSSPP都可以，然后逐步使用它，具体步骤如下。
具体步骤：
1.启动模拟器后，单击菜单栏上的设置按钮，并选择“启动金手指”菜单项。注意不要在游戏中启动，游戏会复位。
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https://iknow-pic.cdn.bcebos.com/574e9258d109b3de0a1fd4b2c7bf6c81810a4c43"/>
2.启动金手指之后，进入游戏。进入游戏之后，按ESC键，出现如下界面，选择金手指，金手指就启动了。
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https://iknow-pic.cdn.bcebos.com/fd039245d688d43f3848a128761ed21b0ff43b02"/>
3.如果要编辑金手指，就单击"EditCheatFile"。
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https://iknow-pic.cdn.bcebos.com/6159252dd42a283476d805d150b5c9ea14cebfe9"/>
4.然后会弹出如下的文件框。在文本框内输入相应的金手指。
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https://iknow-pic.cdn.bcebos.com/b999a9014c086e0613a00c9109087bf40bd1cbdb"/>
5.这里以高达生存突击为例，输入金手指之前，单击模拟器的返回按钮，确保模拟器不在金手指的访问状态，否则保存金手指会失败。
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https://iknow-pic.cdn.bcebos.com/1e30e924b899a90141f06bec16950a7b0308f526"/>
6.复制以下内容到打开的文本框：
①_C1战后机师能力最大_L0x201C34880x000A3021_L0x201C33EC0xA1C70000。
②_C101HP不减_L0x6164B6140x00000000_L0x000600000x00000000_L0x600000000x00000004_L0x000000020x000000E8_L0x100000E40x00000000。
③_C101SP不减_L0x6164B6140x00107AC0_L0x000200000x00000BF8_L0x6164B6140x00000000_L0x000200000x000016F4。
④_C101MAIN主武子弹不减_L0x6164B6140x00000000_L0x000200000x00000308。
⑤_C101SUB次武子弹不减_L0x6164B6140x00000000_L0x000200020x00000558_L0x900001720x00000000。
⑥_C101SHIELD盾牌防护不减_L0x6164B6140x00000004_L0x000000020x00000BB8_L0x10000B940x00000000_L0x6164B6140x00000004_L0x000000020x00000C14_L0x10000C100x00000000。
⑦_C101THRUSTER推进器能量不减_L0x6164B6140x00000000_L0x000200000x00001588。
⑧_C101移动速度提升_L0x6164B6140x3FA00000_L0x000200000x00001660。
⑨_C101移动距离加大_L0x6164B6140x3FA00000_L0x000200000x0000167C。
7.当然不用全部复制，复制你需要的就可以了，_C1是金手指的功能名称，_L是金手指代码。保存时，选择另存为。
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https://iknow-pic.cdn.bcebos.com/7dd98d1001e939014b55bfe470ec54e737d19690"/>
8.另存为为UTF-8格式，不然在模拟器中，会显示乱码。然后单击保存。(金手指的保存路径是PSP模拟器安装路径下的memstick->PSP->Cheats)。
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https://iknow-pic.cdn.bcebos.com/d01373f082025aaf7ac64c11f0edab64024f1a77"/>
9.然后在模拟器中单击金手指，选择你要启动的金手指指令。
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https://iknow-pic.cdn.bcebos.com/e824b899a9014c0862ee1a7f017b02087af4f416"/>
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https://iknow-pic.cdn.bcebos.com/d01373f082025aaf7a994c11f0edab64024f1a44"/>
10.最后单击返回，并选择继续游戏。
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https://iknow-pic.cdn.bcebos.com/faedab64034f78f013cda82972310a55b2191c21"/>
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https://iknow-pic.cdn.bcebos.com/d4628535e5dde711e701712cacefce1b9c16611c"/>