ご返信ありがとうございます。
書き込むときにエラーがでました。
===================================
Arduino:1.8.13 (Windows 10), ボード:"Generic ESP8266 Module, 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), dtr (aka nodemcu), 26 MHz, 40MHz, QIO (fast), 4MB (FS:1MB OTA:~1019KB), 2, nonos-sdk 2.2.1+100 (190703), v2 Lower Memory, Disabled, None, Only Sketch, 115200"
sketch\webServer.cpp: In function 'void handle_file_upload()':
webServer.cpp:152:1: error: expected primary-expression before '<<' token
<<<<<<< HEAD
^
webServer.cpp:152:3: error: expected primary-expression before '<<' token
<<<<<<< HEAD
^
webServer.cpp:152:5: error: expected primary-expression before '<<' token
<<<<<<< HEAD
^
webServer.cpp:152:7: error: expected primary-expression before '<' token
<<<<<<< HEAD
^
webServer.cpp:152:9: error: 'HEAD' was not declared in this scope
<<<<<<< HEAD
^
webServer.cpp:153:5: error: expected ';' before 'f'
f = SD.open(path, FILE_WRITE);
^
webServer.cpp:154:1: error: expected primary-expression before '==' token
=======
^
webServer.cpp:154:3: error: expected primary-expression before '==' token
=======
^
webServer.cpp:154:5: error: expected primary-expression before '==' token
=======
^
webServer.cpp:154:7: error: expected primary-expression before '=' token
=======
^
webServer.cpp:156:1: error: expected primary-expression before '>>' token
>>>>>>> t190123
^
webServer.cpp:156:3: error: expected primary-expression before '>>' token
>>>>>>> t190123
^
webServer.cpp:156:5: error: expected primary-expression before '>>' token
>>>>>>> t190123
^
webServer.cpp:156:7: error: expected primary-expression before '>' token
>>>>>>> t190123
^
webServer.cpp:156:9: error: 't190123' was not declared in this scope
>>>>>>> t190123
^
webServer.cpp:157:5: error: expected ';' before 'if'
if(!f) Serial.printf("open %s failed.\n", path.c_str());
^
exit status 1
expected primary-expression before '<<' token
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