Python字符串上部（）

upper()方法将字符串中的所有小写字符转换为大写字符并返回

句法 ：

string.upper()

参数 ：

The upper() method doesn’t take any parameters.

返回：

returns a uppercased string of the given string

CODE 1：只有字母字符的字符串

# Python3 program to show the
# working of upper() function
text = 'geeKs For geEkS'
  
print("Original String:")
print(text)
  
# upper() function to convert 
# string to upper_case
print("\nConverted String:")
print(text.upper())

输出 ：

Original String:
geeKs For geEkS

Converted String:
GEEKS FOR GEEKS

代码 2：带有字母数字字符的字符串

# Python3 program to show the
# working of upper() function
text = 'g3Ek5 f0r gE3K5'
  
print("Original String:")
print(text)
  
# upper() function to convert 
# string to upper_case
print("\nConverted String:")
print(text.upper())

输出 ：

Original String:
g3Ek5 f0r gE3K5

Converted String:
G3EK5 F0R GE3K5

应用： upper() 方法的常见应用之一是检查两个字符串是否相同

# Python3 program to show the
# working of upper() function
text1 = 'geeks fOr geeks'
  
text2 = 'gEeKS fOR GeeKs'
  
# Comparison of strings using 
# upper() method
if(text1.upper() == text2.upper()):
    print("Strings are same")
else: 
    print("Strings are not same")

输出：

Strings are same