下午 10:49 2025/12/3
Bing講義：
https://www.bing.com/search?q=javascript%20keypress%20combination%20Ctrl%20-%20decrease%20fontsize&qs=n&form=QBRE&sp=-1&lq=0&pq=javascript%20keypress%20combination%20ctrl%20-%20decrease%20fontsize&sc=0-56&sk=&cvid=E98270E12F8240489ABA0D148FFA96A8
截圖：
https://cc.ee.ntu.edu.tw/~d01941025/zz_code_keypressCombinationCtrlMinusAddChangefontsize減法縮小字體參考.png
本TXT僅純粹參考，萃取當中按下Ctrl及-符號 之觀念
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Ctrl + Minus Font Size Control
Use Ctrl + "-" to decrease font size.