python读取文件（三种方法）

file = "F://content.txt"
f = open(file, 'r', encoding='utf-8')
list = f.readlines()

# 方法1：直接打印
print(list)

print('----------方法2：while循环1----------------')
# 方法2：while循环
f = open(file, 'r', encoding='utf-8')
while True:
    line = f.readline()
    if len(line)==0:
        break
    print(line.strip('\n'))
print('----------方法2：while循环2----------------')
while length>0:
    print(list[i][:-1])
    i+=1
    length-=1

# 方法3：for循环
for i in list:
    print(i.strip())

file = "F://content.txt"
f = open(file, 'r', encoding='utf-8')
list = f.readlines()
print('-------------方法1：直接打印----------------')
# 方法1：直接打印
print(list)
length = len(list)
i=0
print('----------方法2：while循环1----------------')
# 方法2：while循环
file = "F://content.txt"
while True:
    line = f.readline()
    if len(line)==0:
        break
    print(line.strip('\n'))
print('----------方法2：while循环2----------------')
while length>0:
    print(list[i][:-1])
    i+=1
    length-=1
print('---------方法3：for循环-------------------')
# 方法3：for循环
for i in list:
    print(i.strip())

bbb aa  dd
cc  aa  cc
aa  dd  ee
dfs dfs dfs