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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
                為了區分輸出信息的重要性,我們對echo這個命令進行封裝,使其能輸出不同顏色的日志,達到區分重要性的作用,代碼如下: ![](https://img.kancloud.cn/e1/f6/e1f6e719b89fa84f4ee6ff27286c7f50_720x532.png =600x) ### 我們給echo封裝出兩個接口,一個是:LOGD,一個是LOGE,用來輸出不同顏色的日志;說明一下,這個地方用到了函數的概念,我們暫時忽略,后面會講到,這里用法和echo是一樣的。 ### 運行如下: ![](https://img.kancloud.cn/d4/9b/d49bc38ff5d307ae856e5edeb7a72c57_832x214.png)
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