使用 Since() 函数获取函数的运行时间。
package main
import (
"fmt"
"time"
)
func test() {
start := time.Now() // 获取当前时间
sum := 0
for i := 0; i < 100000000; i++ {
sum++
}
elapsed := time.Since(start)
fmt.Println("该函数执行完成耗时：", elapsed)
}
func main() {
test()
} 运行结果如下所示：
使用 time.Now().Sub() 获取函数的运行时间。
package main
import (
"fmt"
"time"
)
func test() {
start := time.Now() // 获取当前时间
sum := 0
for i := 0; i < 100000000; i++ {
sum++
}
elapsed := time.Now().Sub(start)
fmt.Println("该函数执行完成耗时：", elapsed)
}
func main() {
test()
} 运行结果如下所示：
该函数执行完成耗时： 36.2369ms
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