
任务一:
# 统计指定字符出现的次数
def get_count(s, ch):
count = 0
for item in s:
if ch.upper() == item or ch.lower() == item:
count += 1
return count
if __name__ == '__main__':
s = 'hellopython, hellojava, hellogo'
ch = input('请输入要统计的字符:')
count = get_count(s, ch)
print(f'{ch}在{s}中出现的次数为:{count}')
任务二:
def show(lst):
for i in lst:
for item in i:
print(item, end='/t/t')
print()
lst = ['01', '电风扇', '美的', 500], ['02', '洗衣机', 'TCL', 1000], ['03', '微波炉', '老板', 400]
print('编号/t/t名称/t/t/t品牌/t/t单价')
show(lst)
print('------------------字符串的格式化-------------------------')
print('编号/t/t/t名称/t/t/t品牌/t/t单价')
for i in lst:
i[0] = '0000' + i[0]
i[3] = '¥{:.2f}'.format(i[3])
show(lst)
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/python/279070.html