python全栈闯关--XX-细节总结汇总

发布时间：2020-12-20 10:47:36 所属栏目：Python 来源：网络整理

导读：1、The start value of slice is less than then end value,and the step is negative print ( " if the start value less then the end value and the step is negative ! " " No error will be reported and empty will be returned, " ) for i in range(0

1、The start value of slice is less than then end value,and the step is negative

print("if the start value less then the end value and the step is negative ! "
      "No error will be reported and empty will be returned,")
for i in range(0,10,-1):
    print(i)

2、One line of code exchanges the value of a and b

# One line of code exchanges value of a and b
a = 1
b = 2
a,b = b,a
print(a,b)

（编辑：李大同）

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