下面程序的输出结果是 d = lambda p:p*2 t = lambda p:p*3 x = 2 x = d(x) x = t(x) x = d(x) print(x)
24
以下函数需要在其中引用一个全局变量k, 请填写语句 def fun(): __________ k = k+1
def fun(): global k k = k + 1
用Python实现99乘法表(用两种不同的方法实现)
for i in range(1, 10): for j in range(1, i+1): print(‘{}x{}={}\t‘.format(j, i, i*j), end=‘‘) print()
i = 1 while i <= 9: a = 1 while a <= i: print("%d*%d=%2d" % (i,a,i*a),end=" ") a+=1 print() i+=1
一个大小为100G的文件etl_log.txt, 要读取文件中的内容, 写出具体过程代码？
with open(‘etl_log.txt‘,‘r‘,encoding=‘utf-8‘)as a: for i in a: info = a.readlines() print(info) fp = open("文件名","模式","编码集") #迭代器
原文：https://www.cnblogs.com/ljy123/p/12650305.html