Python赋值运算符
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Python赋值运算符:
= : 赋值运算符
+= : 加法赋值运算符
-= : 减法赋值运算符
*= : 乘法赋值运算符
/= : 除法赋值运算符
%= : 取模赋值运算符 ,当前面的数小于后面的数时,返回前一个数本身(数大于 0)。
**= : 幂赋值运算符
//= : 取整赋值运算符
注:a 符号等于 b 等价于 a 等于 a 符号 (b)
# = 赋值运算符
a = 4
b = 5
c = a + b
print("a = {0} , b = {1} , c = {2}".format(a,b,c))
# a = 4 , b = 5 , c = 9
# += 加法赋值运算符
a = 4
b = 5
a += b #等价于 a = a + b
print("a = {0} , b = {1} ".format(a,b))
# a = 9 , b = 5
# -= 减法赋值运算符
a = 4
b = 5
a -= b #等价于 a = a - b
print("a = {0} , b = {1} ".format(a,b))
# a = -1 , b = 5
# *= 乘法赋值运算符
a = 4
b = 5
a *= b #等价于 a = a * (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 20 , b = 5
# /= 除法赋值运算符
a = 4
b = 5
a /= b #等价于 a = a / (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 0.8 , b = 5
# %= 取模赋值运算符
a = 4
b = 5
a %= b #等价于 a = a % (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 4 , b = 5
a = 6
b = 4
a %= b #等价于 a = a % (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 2 , b = 4
# **= 幂赋值运算符
a = 4
b = 2
a **= b #等价于 a = a ** (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 16 , b = 2
# //= 取整赋值运算符,返回整数
a = 4
b = 3
a //= b #等价于 a = a // (b)
print("a = {0} , b = {1} ".format(a,b))
# a = 1 , b = 3
2020-02-05
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