tang=100
if tang>200:
print('OK')
print('test')##有縮進就不在就不在if條件結構中
tang=100
if tang >200:
print('200')
elif tang<100:
print('100')
else:
print('100-200')
tang=50
if tang>200:
print('200')
elif tang<100:
print('100')
else:
print('100-200')
tang=[123,456,789]
if 123 in tang:
print('OK')
tang={'tang':123,'yudi':456}
if 'tang'in tang:
print('ok')