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After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Import and simplification of namespaces
php5.6+也支持常量與函數(shù)空間名稱導(dǎo)入 使用use導(dǎo)入空間別名，可用as來定義別名，防止空間重名
2018-12-280個贊
