python學習 - yield

標籤：

def myYield2():    for i in range(3):        yield ‘2222 i am in myYield2‘, ‘i = ‘, idef myYield():    for i in range(10):        yield ‘0000 i am in myYield‘, ‘i = ‘, i        for j in myYield2():            yield ‘1111 i am in for myYield2‘, ‘j = ‘, jf = myYield()print ‘KKK‘, f.next()print ‘KKK‘, f.next()print ‘KKK‘, f.next()print ‘KKK‘, f.next()print ‘KKK‘, f.next()print ‘KKK‘, f.next()print ‘KKK‘, f.next()

yield有一點像return, 返回的結果如下:

KKK (‘0000 i am in myYield‘, ‘i = ‘, 0)KKK (‘1111 i am in for myYield2‘, ‘j = ‘, (‘2222 i am in myYield2‘, ‘i = ‘, 0))KKK (‘1111 i am in for myYield2‘, ‘j = ‘, (‘2222 i am in myYield2‘, ‘i = ‘, 1))KKK (‘1111 i am in for myYield2‘, ‘j = ‘, (‘2222 i am in myYield2‘, ‘i = ‘, 2))KKK (‘0000 i am in myYield‘, ‘i = ‘, 1)KKK (‘1111 i am in for myYield2‘, ‘j = ‘, (‘2222 i am in myYield2‘, ‘i = ‘, 0))KKK (‘1111 i am in for myYield2‘, ‘j = ‘, (‘2222 i am in myYield2‘, ‘i = ‘, 1))

python學習 - yield