字串常用操作

strip將輸入資訊前後空格去除

username = input("username:")

if username.strip() == 'liangml':
print('welcome')

name = "liangml,tom,jack"

name2 = name.split(",") #拆分以逗號分隔的字串得到乙個列表
print('|'.join(name2))#join是將name2結果以|形式合併到一起
print(name2)

print(name.capitalize())

format字串兩種賦值方式msg = "hello,,it's been a long  since last time sopke...."

msg2 = msg.format(name="zhangsan",age=111)
print(msg2)
msg2 = "lisi,dddd"
print(msg2.format("liangml",22))

name = 'jack,tom,zhangsan,lisi'

print(name)
print(name.center(40,'-'))

print(name.find('a'))

age = input('your age:')

if age.isdigit():
age = int(age)
else:
print('invalid data type')

name = 'liangml'

print(name.isalnum())

print(name.endswith("ml"))

print(name.startswith('ml'))

print(name.upper())

print(name.lower())

字串常用操作。。。

include include include char itoa int value result char malloc sizeof char i 1 for j 0 jint i 65 char p itoa i printf s n p free p p null include incl...

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一 變換大小寫 string.tolowercase string.touppercase var big qwertyu big.tolowercase qwertyu var yh qwertyui yh.touppercase qwertyui 二 獲取字串長度 var yy 好好學習前端做個...