If语句
elif关键字是pythons表示“如果前面的条件不为真,那么试试这个条件”。
The else keyword catches anything which isn't caught by the preceding conditions.
a = 200
b = 33
if b > a:
print("b is greater than a")
elif a == b:
print("a and b are equal")
else:
print("a is greater than b")
如果只有一条语句要执行,则可以将其与If语句放在同一行。
if a > b: print("a is greater than b")
如果只有一条语句要执行,一条用于If,另一条用于else,则可以将所有语句放在同一行中
a = 2
b = 330
print("A") if a > b else print("B")
and关键字是一个逻辑运算符,用于组合条件语句
a = 200
b = 33
c = 500
if a > b and c > a:
print("Both conditions are True")
or关键字是一个逻辑运算符,用于组合条件语句
a = 200
b = 33
c = 500
if a > b or a > c:
print("At least one of the conditions is True")
循环语言
while语句
使用while循环,只要条件为true,我们就可以执行一组语句。
i = 1
while i < 6:
print(i)
i += 1
使用break语句,即使while条件为true,我们也可以停止循环
i = 1
while i < 6:
print(i)
if i == 3:
break
i += 1
使用continue语句,我们可以停止当前迭代,然后继续下一个迭代
i = 0
while i < 6:
i += 1
if i == 3:
continue
print(i)
使用else语句,当条件不再为真时,我们可以运行一段代码
i = 1
while i < 6:
print(i)
i += 1
else:
print("i is no longer less than 6")
for语句
fruits = ["apple", "banana", "cherry"]
for x in fruits:
print(x)
for循环中的else关键字指定循环完成时要执行的代码块
for x in range(6):
print(x)
else:
print("Finally finished!")
for x in range(6):
if x == 3: break
print(x)
else:
print("Finally finished!")
#If the loop breaks, the else block is not executed.
标签:语句,关键字,Python,else,python,while,print,搞懂,than From: https://www.cnblogs.com/bugs-in-life/p/16638249.html您的关注,是我的无限动力!
公众号 @生活处处有BUG