Python Generator 運行細節驗證

標籤：

今天來__next__和send, 改天來throw和close

class A:    def __setattr__(self, key, val):        print(‘set %s to %s‘%(key, val))        self.__dict__[key] = valdef G():    e = A()    i = 0    while 1:        e.x = (yield i)        print(‘    e.x is %s‘%e.x)        i+=1def p(s):    print(‘        out put: %s\n‘% s)    g = G()p(next(g))p(next(g))p(g.send(‘x1‘))p(g.send(‘x2‘))p(next(g))

結果:

>>>         out put: 0set x to None    e.x is None        out put: 1set x to x1    e.x is x1        out put: 2set x to x2    e.x is x2        out put: 3set x to None    e.x is None        out put: 4

 

Python Generator 運行細節驗證