Python 之 程式設計中常見錯誤

1 變數名不正確

message = "

hello
"print
(msg)
#錯誤資訊：nameerror: name 'msg' is not defined

2 單引號包圍的字串中包含單引號，雙引號包圍的字串中包含雙引號

message = '

he'llo'
print
(message)
#錯誤資訊：syntaxerror: invalid syntax
message = "
he"llo"
print
(message)
#錯誤資訊：syntaxerror: invalid syntax

3 型別錯誤

num1 = 1

print(1 + "2"
)#錯誤資訊：typeerror: unsupported operand type(s) for +: 'int' and 'str'

4 除0錯誤

num1 = 1

print(1 /0)
#錯誤資訊：zerodivisionerror: division by zero

5 列表下標越界

colors = ["

red","
blue
","yellow"]
print(colors[3])
#錯誤資訊：indexerror: list index out of range

6 for迴圈後面的**忘記縮排

colors = ["

red", "
blue
", "
yellow
", "
orange
", "
white
", "
pink
", "
brown"]
for color in
colors:
print
(color)
#錯誤資訊：indentationerror: expected an indented block

7 不必要的縮排

colors = ["

red", "
blue
", "
yellow
", "
orange
", "
white
", "
pink
", "
brown"]
print
(colors)
#錯誤資訊：indentationerror: unexpected indent

8 for迴圈忘了後面的冒號

colors = ["

red", "
blue
", "
yellow
", "
orange
", "
white
", "
pink
", "
brown"]
for color in
colors
print
(color)
#錯誤資訊：syntaxerror: invalid syntax

9 修改元組中的元素，引發型別錯誤

#

定義元組，使用圓括號而不是方括號
colors = ("
red", "
blue
", "
yellow
", "
orange
", "
white
", "
pink
", "
brown")
#如果修改元組中的元素，將返回型別錯誤資訊
colors[0] = "
black"#
錯誤資訊：typeerror: 'tuple' object does not support item assignment

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