format函数

// A code block
var foo = 'bar';

简单拼接+及str

print(“holle world”)
holle world

name = “tom”
age = 27

print(“name is”+ name + “age is” +str(age))
name istomage is27

print(" name is "+ name + " age is " +str(age))
name is tom age is 27

format函数

print(“name is : {1},age is : {0}”.format(age,name))
name is : tom,age is : 27

print(“name is : {n},age is : {a}”.format(n=name,a=age))
name is : tom,age is : 27

// An highlighted block
var foo = 'bar';