var单位=“年”；变种大卫年龄 = 65;变量约翰年龄 = 40; var ageDifference = davidAge - johnAge; alert("年龄差是" + ageDifference + " " + 个数); - CSS 代码示例

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📜 var单位=“年”；变种大卫年龄 = 65;变量约翰年龄 = 40; var ageDifference = davidAge - johnAge; alert("年龄差是" + ageDifference + " " + 个数); - CSS 代码示例

📅 最后修改于: 2022-03-11 14:47:50.230000 🧑 作者: Mango

代码示例1

The code is more readable with an appropriately named variable, 
rather than including an arithmetic expression 
inside of parentheses inside of a concatenation.