Python 之 字符串格式化輸出定義

字符串格式化輸出定義

1.加號拼接：

name = input("name:")
age = input("age:")
job = input("job:")

message = '''
---------information of ''' + name +'''----------
name:''' + name + '''
age:''' + age + '''
job:''' + job

print(message)

----------information of zhoumingkang----------
name:zhoumingkang
age:30
job:it
Process finished with exit code 0

2.%s格式化字符串

name = input("name:")
age = int(input("age:"))     #強制將字符串轉為×××
print(type(age))             #打印變量類型，以確定是否正確
job = input("job:")
message1 = '''----------information of %s----------
name:%s
age:%d             #%d代表整型
job:%s
''' % (name,name,age,job)
print(message1)

3.{}格式化字符串

name = input("name:")
age = input("age:")
job = input("job:")
message2 = '''----------information of {_name}----------
name:{_name}
age:{_age}
job:{_job}
'''.format(_name=name,_age=age,_job=job)
還有另外一種大括號格式化字符串方法：
message3 = '''----------information of {0}----------
name:{0}
age:{1}
job:{2}
'''.format(name,age,job)
print(message3)

備注：

當使用‘’‘%s’‘’時，后面接在用%(變量名)
當使用‘’‘{_name}’‘’時，后面接在用 .format(_name=name)

4.簡單的格式化字符串輸出

name = input("name:")
age = input("age:")
job = input("job:")
print('my name is {0}, age is  {1}，job is {2}'.format(name,age,job))
輸入結果：
name:kang
age:30
job:it
my name is kang, age is  30，job is it