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                ## 算數運算符 加法:+,減法:-,乘法:*,除法:/,整除://,取余:%,指數:**,小括號:()。混合運算優先級順序: () 高于 ** 高于 * / // % 高于 + - ~~~ # 加法 a = 1 b = 2 print(a + b) # 輸出:3 # 減法 a = 8 b = 3 print(a - b) # 輸出:5 # 乘法 a = 8 b = 3 print(a * b) # 輸出:24 # 除法 a = 8 b = 16 print(a / b) # 輸出:0.5 # 整除 a = 8 b = 8 print(a // b) # 輸出:1 # 取余 a = 8 b = 16 print(a % b) # 輸出:8 # 指數 a = 2 b = 3 print(a ** b) # 輸出:8 # 混合運算優先級 a = 2 b = 3 c = 5 d = 16 print(a * b - c + c / d) # 輸出:1.3125 print(a * b - (c + c) / d) # 輸出:5.375 ~~~ ## 賦值運算符 變量賦值:單個變量賦值,多個變量賦值,多個變量賦相同的值 ~~~ # 單個變量賦值 my = 1 print(my) # 輸出:1 # 多個變量賦值 a, b, c = 1, 2, 3 print(a) # 輸出:1 print(b) # 輸出:2 print(c) # 輸出:3 # 多個變量賦相同值 a = b = 10 print(a) # 輸出:10 print(b) # 輸出:10 ~~~ ## 復合賦值運算符 加法賦值運算符:+=;減法賦值運算符:-=;乘法賦值運算符:*=;除法賦值運算符:/=;整除賦值運算符://=;取余賦值運算符:%=;冪賦值運算符:**=; ~~~ # 加法賦值運算符 a = 2 a += 1 print(a) # 輸出:3 # 減法賦值運算符 a = 2 a -= 1 print(a) # 輸出:1 # 乘法賦值運算符 a = 2 a *= 1 print(a) # 輸出:2 # 除法賦值運算符 a = 2 a /= 1 print(a) # 輸出:2.0 # 整除賦值運算符 a = 2 a //= 1 print(a) # 輸出:2 # 取余賦值運算符 a = 3 a %= 2 print(a) # 輸出:1 # 冪賦值運算符 a = 3 a **= 2 print(a) # 輸出:9 ~~~ ## 比較運算符 ==:判斷相等。如果兩個操作數的結果相等,則條件結果為真(True),否則條件結果為假(False);!=:不不等于 。如果兩個操作數的結果不不相等,則條件為真(True),否則條件結果為假(False);>:運算符左側操作數結果是否?大于右側操作數結果,如果?大于,則條件為真,否則為假;<:運算符左側操作數結果是否?大于右側操作數結果, 如果?大于,則條件為真,否則為假;>=:運算符左側操作數結果是否?大于等于右側操作數結果,如果?大于,則條件為真,否則為假;<=:運算符左側操作數結果是否?小于等于右側操作數結果,如果?小于,則條件為真,否則為假 ~~~ # 示例 a = 8 b = 4 print(a == b) # False print(a != b) # True print(a < b) # False print(a > b) # True print(a <= b) # False print(a >= b) # True ~~~ ## 邏輯運算符 布爾與(and):a and b,如果a為False,則返回False,否則它返回b的值;布爾或(or):a or b,如果a是True,則返回True,否則它返回b的值;布爾非(not):not a,如果a為True,則返回False。如果a為False,則返回True; ~~~ # 示例 a = 1 b = 2 c = 3 print((a < b) and (b < c)) # True print((a > b) and (b < c)) # False print((a > b) or (b < c)) # True print(not (a > b)) # True ~~~
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