Python入门系列Day1

格式化输出的几种写法：

name=input('Name:\n')
age=input('age:\n')
job=input('job:\n')
salary=input('salary:\n')
info='''
-----info of {_name}-----
Name:{_name}
Age:{_age}
Job:{_job}
Salary:{_salary}
''' .format(_name=name,
            _age=age,
            _job=job,
            _salary=salary)
print(info)


name=input('Name:\n')
age=input('age:\n')
job=input('job:\n')
salary=input('salary:\n')
info2='''
-----info of %s-----
Name:%s
Age:%d
Job:%s
Salary:%d
''' %(name,name,age,job,salary)
print(info2)

While循环

guess_age_oldboy = 43

count=0
#while True:
#    if count==3:
#        break
while count<3:
    guess_age=int(input('guess age:\n'))
    if guess_age==guess_age_oldboy:
        print('yes, you got it')
        break
    elif guess_age > guess_age_oldboy:
        print('think smaller')
    else :
        print('think bigger')
    count+=1
    if count==3:
        countine_confirmation=input('do you want to keep guessing...?(Y/N)')
        if countine_confirmation=='Y':
            count=0
        else:
            break

--Break跳出当前循环，continue跳出本次循环跳转到下一次循环


For循环的简单使用

for i in range(0,10,2):
    print('------------',i)
    for j in range(10):
        print(j)
        if j>5:
            break

对于Python而言，单引号与双引号没有差异，只是在用引号套引号时，必须用区分使用，即用单引号套双引号或者用双引号套单引号；