Python cProfile输出是什么意思？

ncalls  tottime  percall  cumtime  percall filename:lineno(function)
    1    0.000    0.000   65.417   65.417 <string>:1(<module>)
    1   43.675   43.675   65.417   65.417 primenumber_o.py:3(main)
    1    0.000    0.000    0.000    0.000 {method \'disable\' of \'_lsprof.Profiler\' objects}
99999   21.742    0.000   21.742    0.000 {range}
    2    0.000    0.000    0.000    0.000 {time.time}

for

range()

main

if __name__ == \'__main__\':
    ...

range()