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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### 事件 ~~~ var test = document.getElementById("test"); test.onclick = function(){ ~~~ ![](https://box.kancloud.cn/e030672cfb0a54c0746d7c8e68f4ed0e_170x58.png) var test 是節點 document.getElementById("test")獲取節點 this指執行事件的當前對象 ~~~ this.style.color ="red"; ~~~ 點擊顏色變紅 ![](https://box.kancloud.cn/fffa5793797754359dfcd41292af59a8_143x61.png) ~~~ this.innerHTML = "change" ~~~ 點擊文字改變 ![](https://box.kancloud.cn/e1b1df0fc4b7ffecbea61eeb9246af41_141x50.png) ~~~ if(this.style.color=="red"){ this.style.color="#333" }else{ this.style.color="red" } ~~~ 點擊紅黑切換 ~~~ this.style.color=(this.style.color==="red")?"#333":"red"; ~~~ 三目運算實現紅黑切換 三個等號表示連類型也完全一致 \[為真執行第一個指令,假執行冒號后的指令\]
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