sandwich_orders=['wa', 'bas','iba', 'wibh', 'ouwn']
finished_sandwiches=[]
while sandwich_orders:
sandwich= pop(sandwich_orders)
finished_sandwiches.append(sandwich)
请问为什么在这里在while里面就无法用POP?在命令行单独运行可以使用。
sandwich_orders=['wa', 'bas','iba', 'wibh', 'ouwn']
finished_sandwiches=[]
while sandwich_orders:
sandwich= pop(sandwich_orders)
finished_sandwiches.append(sandwich)
请问为什么在这里在while里面就无法用POP?在命令行单独运行可以使用。
sandwich= sandwich_orders.pop()
sandwich_orders=['wa', 'bas','iba', 'wibh', 'ouwn']
finished_sandwiches=[]
while sandwich_orders:
sandwich= sandwich_orders.pop()
finished_sandwiches.append(sandwich)
print(finished_sandwiches)
print(sandwich_orders)