交換兩個數據

#交換兩個變量 #1 a = 20 b = 15 c = a a = b b = c print(a,b) #2 a = 20 b = 15 a = a + b b = a - b a = a - b print(a,b) #3異或運算 a = 20 b = 15 a = a ^ b b = a ^ b a = a ^ b print(a,b) #python a = 20 b = 15 a,b = b,a print(a,b)