1.有变量name = "aleX leNb",完成以下操作
name = "aleX leNb" # 1)移除name变量对应的两边的空格 s1 = name.strip(' ') # 2)移除name变量左边‘al’ s2 = name[2:] s3 = name.lstrip('al') # 3)移除name变量右边‘Nb’ s4 = name[:7] s5 = name.rstrip('Nb') # 4)移除name变量开头的‘a’和结尾的‘b’ s6 = name[1:-1] # 5)判断变量是否以‘al’开头 s7 = name.startswith('al') # 6)将name变量对应的所有的‘l’转换为‘p’ s8 = name.replace('l','p') # 7)将name变量对应的所有的‘l’分割 s9 = name.split('l') # 8)将name变量值变大写 s10 = name.upper() # 8)将name变量值变小 s11= name.lower() # 9)将name变量首字母大写 s12 = name.capitalize() # 10)判断name变量‘T’出现几次 s13 = name.find('T') # 11)从变量name中找到‘N’所在的索引，不在则报错 s14 = name.index('N')
2.使用while和for循环分别打印字符串s="asdfer"
s = "asdfer" i = 0 while i < len(s): print(s[i]) i = i+1 for i in s : print(i)
3.实现一个整数加法计算器 如：content=input() 如果用户输入5+9或5+ 9或者 5 + 9然后进行分割运算
content = input("请输入内容") s = content.split('+') s1 = s[0] s2 = s[1] s1 = int(s1.strip(' ')) s2 = int(s2.strip(' ')) print(s1+s2)
4.计算用户输入的内容有几个整数 如：content=input()
content = input("请输入内容") count = 0 for i in content: if i > '0' and i < '9': count += 1 print(count)