2019-03-04

python函数，传递列表可以修改，普通变量只在函数内生效

def a(b): 
    b[0]=1
          
b1 = [0]  
a(b1)     
print(b1) 
          
          
def c(d): 
    d = 5 
d1 = 2    
c(d1)     
          
print(d1) 

[1]
2