st={"name":"xxx","emails":["a@123.com","b@123.com"],"age":20}del st["emails"][0]st["emails"].append("c@123.com")del st["age"]print(st)结果是
A. {'name': 'xxx', 'emails': ['b@123.com', 'c@123.com']}
B. {'name': 'xxx', 'emails': ['a@123.com','b@123.com', 'c@123.com']}
C. {'name': 'xxx', 'emails': ['a@123.com','a@123.com', 'c@123.com'],"age":20}
D. {'name': 'xxx', 'emails': ['a@123.com','a@123.com', 'c@123.com']}
def f():st["name"]="x"st={"name":"a","sex":"male"}f()print(st["name"],st["sex"])结果是
A. male
B. a male
C. x None
D. x male
st=("a","b")st[0]="c"print(st)程序结果是：
A. ('a','b')
B. 错误
C. ('c','b')
D. ['a','b']
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