def print_numcount_03():
result = 0
content = raw_input('eter number and string:n')
for i in content:
if i in "1234567890":
result += 1
print result
print_numcount_03()
def print_numcount_02():
result = 0
index = 0
content = raw_input('eter number and string:n')
while index <= len(content) -1:
if content[index] in "1234567890":
result += 1
index += 1
print result
#print_numcount_02()
def print_numcount_01():
result = 0
content = raw_input('eter number and string:n')
for i in content:
if i.isdigit(): # isdigit() 方法检测字符串是否只由数字组成。
result += 1
print result
#print_numcount_01()
