bat腳本求助替換字符串時(shí)會在空行多打印出ECHO已關(guān)閉

(for /f tokens=1,* delims=: %%a in ('type !filename!') do (
echo %%a
echo %%a | find File >nul
if errorlevel 1 (
if %%a== (
echo 666
) else (
if %%b== (
echo %%a >> %tempDir%!jsonFile!_updated.json
) else (
echo 55555
echo null
echo %%a:%%b >> %tempDir%!jsonFile!_updated.json
)
)
) else (
echo File:!new_string!, >> %tempDir%!jsonFile!_updated.json
)
))
nclick="copycode($('code0'));">復(fù)制代碼

這個(gè)代碼替換字符串時(shí)會在空行多打印出ECHO已關(guān)閉，如下，請問大佬們?nèi)绾谓鉀Q{ UpgradeDst:MasterNode, File:fw_mod_ht892x_g3_g3_g3_0617_2.2.18_jzq_master_STAR_KF.0072_0619133837_FCC_13_rf_9_1_V2625.bin, ActiveTime:0-0-0 0:1:0, Version:V2624, RetryTimes:20, Timeout:10, BroadTransferDelay:2, BroadReTransferTimes:20, blocksize:200, NodeList:[ ECHO ���ڹر�״̬�� ] }