# 把10賦值給type_of_people

type_of_people = 10

# 前面的‘f’是字符串格式化的意思，和原生字符串‘r’作用類似

# {}里的變量被替換

x = f"There are {type_of_people} type of people."

# 把字符串“binary”賦值給變量binary

binary = "binary"

把字符串“do_not”賦值給變量do_not

do_not = "don't"

賦值

y = f"There who {binary} and those who {do_not}."

打印x引用的對(duì)象

print(x)

# 這里有兩個(gè)字符串鑲嵌

print(y)

# 一個(gè)字符串鑲嵌

print(f"I said: {x} ")

# 一個(gè)字符串鑲嵌

print(f"I also said: '{y} ' ")

hilarious = False

joke_evaluation = "Isn't than joke so funny?! {}"

print(joke_evaluation.format(hilarious))

w = "This is the left side of ..."

e = "a string with a right side"

# 把兩個(gè)字符串連接起來
# 通過”+“號(hào)連接字符串是調(diào)用了一個(gè)join()函數(shù)實(shí)現(xiàn)的
print(w + e)

練習(xí)

1. 完成這個(gè)程序并在每一行寫上注釋。

2. 找出字符串鑲嵌在另一個(gè)字符串的所有地方。這里有四個(gè)地方。

3. 你確定這只有四個(gè)地方？你怎么知道的？或許我在撒謊呢？

4. 解釋為什么通過”+“可以把”w"和“e”這兩個(gè)字符串連接起來成為一個(gè)更長(zhǎng)的字符串？
   答案都在注釋中。