1?? 找第三變量數(shù)據(jù)交換
a = 10
b = 3
c = a
a = b
b = c
2??不使用其他變量數(shù)據(jù)交換
a = 10
b = 3
a = a+b
b = a-b
a = a-b
3?? 簡(jiǎn)單的賦值運(yùn)算
a = 10
b = 3
b,a = a,b
1?? 找第三變量數(shù)據(jù)交換
a = 10
b = 3
c = a
a = b
b = c
2??不使用其他變量數(shù)據(jù)交換
a = 10
b = 3
a = a+b
b = a-b
a = a-b
3?? 簡(jiǎn)單的賦值運(yùn)算
a = 10
b = 3
b,a = a,b