p.33(f-string)
1234567891011121314151617181920212223242526
name="john"
age=10
#case 1 place holder codes %s string, %d integer %f flost %x hex
#print("Name:%s,Age:%d"%(name,age))
#case 2 convert date to str
#print("Name:"+name+",Age" + str(age))
#case 3 str.format()
#print("Name:{},Age:{}, name agin:{}",format(name,age))
#case 4 named argument
#print("Name:{n},Age:{a},Name again:{n}",format(n=name,a=age))
#eg.
#print("Double{x}:{x}+{x}={sum_x}",format(x=5,sum_x=5 +5))
#case 5 :f-string python > 3.6
#print(f"Name:{name},Age:{age},Name agin:{name}")
x=5
sum_x=5+5
price=49.99
tax=0.08
total=price*(1+tax)
print(f"Price:${price:.2f}|Tax:{tax:.1%}|Total:${total:.2f}")
print('1---5----01---5-----0')
print(f"{age:5d}")#{varlable:[width][type]}
print(f"{'Name':<10}{'Age':>5}")
print(f"{name:<10s}{age:>5.2f}")
print(f"{'Apple':^10}")
print(f"{name:<<10s}{age:->10.2f}")
Python
INFO