Python条件语句及基本数据类型

if 1==1：
    print(‘ok‘)  #缩进四个字符，可按TAB键
else:
    print(‘Error‘)

if 1 == 1：
    print(‘a1‘)
    print(‘a2‘)
print(‘end‘)

if 1 == 1:
    if 2 == 2:
        print(‘a1‘)
        print(‘a2‘)
    else:
        print(‘a3‘)
else:
    print(‘a4‘)

inp = input(‘please input inp : ‘)
if inp == ‘a1‘ :
    print(‘b1‘)
elif inp == ‘a2‘:
    print(‘b2‘)
elif inp == ‘a3‘:
    print(‘b3‘)
else:
    print(‘b4‘)

if 1 == 1：
    pass
else:    
    print(‘a1‘)

n1="alex"
n2=‘nb‘
n3=n1+n2
print(n3)

n1 = ‘alex‘
n2=n1*3
print(n2)

a = input (‘please enter a number: ‘)
temp = a % 2
if temp == 0:
    print (‘a is a even number‘)
else:
    print (‘a is a odd number‘)