swift5 ?10位時(shí)間戳寫法:(秒級(jí))
?let time = (NSDate().timeIntervalSince1970)
?let?timeStr = String(format:"%0.f", time)
swift5 ?13位時(shí)間戳寫法:(毫秒級(jí))
let?time = (NSDate().timeIntervalSince1970 *1000)
let?timeStr = String(format:"%0.f", time)
swift5 ?10位時(shí)間戳寫法:(秒級(jí))
?let time = (NSDate().timeIntervalSince1970)
?let?timeStr = String(format:"%0.f", time)
swift5 ?13位時(shí)間戳寫法:(毫秒級(jí))
let?time = (NSDate().timeIntervalSince1970 *1000)
let?timeStr = String(format:"%0.f", time)